Corrective Action for Codes
Thread Starter
Instructor
Joined: Aug 2003
Posts: 244
Likes: 1
From: Round Rock TX
Corrective Action for Codes
I have the following codes on my 98 C5 which will not reset. Any ideas on what to do to correct this problem?
B2262 Horizontal Position Sensor Fit
B2264 Vertical Position Sensor Fault
B2263 Horizontal Position Sensor Fit
B2265 Horizontal Position Sensor Fault
Another site shows these errors to be "Mirror Position Sensor Signal Circuit".
Any help will be appreciated!
B2262 Horizontal Position Sensor Fit
B2264 Vertical Position Sensor Fault
B2263 Horizontal Position Sensor Fit
B2265 Horizontal Position Sensor Fault
Another site shows these errors to be "Mirror Position Sensor Signal Circuit".
Any help will be appreciated!
Instructor
Joined: Apr 2006
Posts: 178
Likes: 0
From: Braselton GA
From the gm service guide here ya go
DTC B2262 Horizontal Position Sensor Circuit
Circuit Description
The LH Door Control Module (LDCM) receives a horizontal position signal from the LH mirror horizontal position sensor. This signal is used by the LDCM for memory recall functions to determine the horizontal position of the LH mirror. The LDCM commands the mirror memory settings based upon the voltage level the LDCM receives back from the horizontal position sensor. The LDCM provides a 5 volt supply (CKT 788), a signal (CKT 786) and a ground (CKT 1251) to the horizontal position sensor. The horizontal position sensor is a variable resistor which the LDCM monitors the voltage level across. When a memory setting is recalled, the LDCM will command the LH mirror motor in the appropriate direction until the stored position sensor voltage level is achieved. The LDCM also monitors the LH mirror horizontal position signal circuit and can determine if the voltage level received is out of range. If the voltage level is out of range, then a malfunction is present and a DTC will set.
Conditions for Setting the DTC
The LDCM detects LH mirror horizontal position sensor signal voltage range under 0.1 volts or over 4.78 volts.
Condition must be present for 2 seconds.
Action Taken When the DTC Sets
Stores a history DTC B2262 in the LDCM memory.
This DTC can only be set as a history code even if the malfunction is current.
No driver warning message will be displayed for this DTC.
Conditions for Clearing the DTC
The LDCM detects the correct LH mirror horizontal position sensor signal voltage range (0.1-4.78 volts) for longer than 2 seconds.
Use the IPC clearing DTCs feature.
Use a scan tool.
Diagnostic Aids
The following conditions may cause an intermittent malfunction:
There is an intermittent open or short (to ground or voltage) in CKT 1251, CKT 786, or CKT 788.
The LH mirror horizontal position sensor is open or shorted internally.
If the LDCM is unable to determine the correct horizontal position, manual power mirror functions will still operate, but the LDCM will not be able to recall the correct mirror memory settings.
Using a scan tool, select LDCM Data display and monitor the mirror horizontal position data. Move the LH power mirror horizontally in both direction while monitoring the horizontal position sensor data. The voltage range should vary and stay between 0.1-4.78 volts depending on the direction of the mirror. This checks if the mirror horizontal position sensor is open or shorted in different positions.
If the DTC does not reset after the code is cleared, then the problem may be intermittent. Perform the tests shown while moving related wiring and connectors. This can often cause the malfunction to occur. Refer to Intermittents and Poor Connections .
Test Description
The numbers below refer to the step numbers on the diagnostic table:
This test checks if a DTC B2264 stored in the LDCM memory.
This test checks the mirror horizontal position sensor voltage using a scan tool. Normal mirror horizontal position sensor voltage range is between 0.1-4.78 volts.
This test checks if the LDCM is sending the correct supply voltage to the LH mirror. The supply voltage measured must be between 4.0-5.5 volts.
This test checks for an open or short to voltage in CKT 1251 or in the LDCM internal ground circuit.
This test checks the output voltage level at the LH mirror horizontal position sensor signal circuit. The signal voltage measured must be between 3.5-5.5 volts.
DTC B2262 Step
Action
Value(s)
Yes
No
1
Were you sent here from the Power Door Diagnostic System Check?
--
Go to Step 2
Go to Diagnostic System Check - Power Door Systems
2
Using a scan tool, select LDCM DTC display and check for a DTC B2264.
Is DTC B2264 stored as history?
--
Go to Step 3
Go to Step 6
3
Using a scan tool, select LDCM data display and monitor the mirror horizontal position sensor data while operating the LH mirror.
Does the scan tool display mirror horizontal position sensor voltage within the specified range?
0.1-4.78 V
Go to Step 12
Go to Step 4
4
Turn OFF the ignition switch.
Disconnect the LH mirror connector C2.
Turn ON the ignition switch.
At the LH mirror connector C2 (harness side), measure the voltage between terminal A and ground while operating the LH mirror.
Is the voltage within the specified range?
4.0-5.5 V
Go to Step 5
Go to Step 7
5
At the LH mirror connector C2 (harness side), measure the voltage between terminals A and C while operating the LH mirror.
Is the voltage within the specified range?
4.0-5.5 V
Go to Step 10
Go to Step 8
6
Turn OFF the ignition switch.
Disconnect the LH mirror connector C2.
Turn ON the ignition switch.
At the LH mirror connector C2 (harness side), measure the voltage between terminal D and ground while operating the LH mirror.
Is the voltage within the specified range?
3.5-5.5 V
Go to Step 10
Go to Step 9
7
Check for an open or short (to ground or voltage) in CKT 788.
Was a problem found and repaired?
--
Go to Step 14
Go to Step 11
8
Check for an open or short to voltage in CKT 1251.
Was a problem found and repaired?
--
Go to Step 14
Go to Step 11
9
Check for an open or short (to ground or voltage) in CKT 786.
Was a problem found and repaired?
--
Go to Step 14
Go to Step 11
10
Replace the LH mirror assembly. Refer to Mirror Replacement .
Is the replacement complete?
--
Go to Step 14
--
11
Replace the LDCM. Refer to Door Control Module Replacement .
Is the replacement complete?
--
Go to Step 14
--
12
Check the mirror horizontal position sensor circuit for an intermittent malfunction. Refer to Diagnostic Aids.
Was a problem found and repaired?
--
Go to Step 14
Go to Step 13
13
Turn OFF the ignition switch.
Reconnect or install any connectors or components that were disconnected or removed.
Turn ON the ignition switch.
Clear any DTCs. Refer to Diagnostic Trouble Code (DTC) Clearing .
Wait 2 seconds.
Does DTC B2262 set as history?
--
Go to Step 11
System OK
14
Turn OFF the ignition switch.
Reconnect or install any connectors or components that were disconnected or removed.
Turn ON the ignition switch.
Clear any DTCs. Refer to Diagnostic Trouble Code (DTC) Clearing .
Is the repair complete?
--
Go to Diagnostic System Check - Power Door Systems
--
DTC B2264 Vertical Position Sensor Circuit
Circuit Description
The LH Door Control Module (LDCM) receives a vertical position signal from the LH mirror vertical position sensor. This signal is used by the LDCM for memory recall functions to determine the vertical position of the LH mirror. The LDCM commands the mirror memory settings based upon the voltage level the LDCM receives back from the vertical position sensor. The LDCM provides a 5 volt supply (CKT 788), a signal (CKT 784) and a ground (CKT 1251) to the vertical position sensor. The vertical position sensor is a variable resistor which the LDCM monitors the voltage level across. When a memory setting is recalled, the LDCM will command the LH mirror motor in the appropriate direction until the stored position sensor voltage level is achieved. The LDCM also monitors the LH mirror vertical position signal circuit and can determine if the voltage level received is out of range. If the voltage level is out of range, then a malfunction is present and a DTC will set.
Conditions for Setting the DTC
The LDCM detects LH mirror vertical position sensor signal voltage range under 0.1 volts or over 4.78 volts.
Condition must be present for 2 seconds.
Action Taken When the DTC Sets
Stores a history DTC B2264 in the LDCM memory.
This DTC can only be set as a history code even if the malfunction is current.
No driver warning message will be displayed for this DTC.
Conditions for Clearing the DTC
The LDCM detects the correct LH mirror vertical position sensor signal voltage range (0.1-4.78 volts) for longer than 2 seconds.
Use the IPC clearing DTCs feature.
Use a scan tool.
Diagnostic Aids
The following conditions may cause an intermittent malfunction:
There is an intermittent open or short (to ground or voltage) in CKT 1251, CKT 784, or CKT 788.
The LH mirror vertical position sensor is open or shorted internally.
If the LDCM is unable to determine the correct vertical position, manual power mirror functions will still operate, but the LDCM will not be able to recall the correct mirror memory settings.
Using a scan tool, select LDCM Data display and monitor the mirror vertical position data. Move the LH power mirror vertically in both direction while monitoring the vertical position sensor data. The voltage range should vary and stay between 0.1-4.78 volts depending on the direction of the mirror. This checks if the mirror vertical position sensor is open or shorted in different positions.
If the DTC does not reset after the code is cleared, then the problem may be intermittent. Perform the tests shown while moving related wiring and connectors. This can often cause the malfunction to occur. Refer to Intermittents and Poor Connections .
Test Description
The numbers below refer to the step numbers on the diagnostic table:
This test checks if a DTC B2262 stored in the LDCM memory.
This test checks the mirror vertical position sensor voltage using a scan tool. Normal mirror vertical position sensor voltage range is between 0.1-4.78 volts.
This test checks if the LDCM is sending the correct supply voltage to the LH mirror. The supply voltage measured must be between 4.0-5.5 volts.
This test checks for an open or short to voltage in CKT 1251 or in the LDCM internal ground circuit.
This test checks the output voltage level at the LH mirror vertical position sensor signal circuit. The signal voltage measured must be between 3.5-5.5 volts.
DTC B2264 Step
Action
Value(s)
Yes
No
1
Were you sent here from the Power Door Diagnostic System Check?
--
Go to Step 2
Go to Diagnostic System Check - Power Door Systems
2
Using a scan tool, select LDCM DTC display and check for a DTC B2262.
Is DTC B2262 stored as history?
--
Go to Step 3
Go to Step 6
3
Using a scan tool, select LDCM data display and monitor the mirror vertical position sensor data while operating the LH mirror.
Does the scan tool display mirror vertical position sensor voltage within the specified range?
0.1-4.78 V
Go to Step 12
Go to Step 4
4
Turn OFF the ignition switch.
Disconnect the LH mirror connector C2.
Turn ON the ignition switch.
At the LH mirror connector C2 (harness side), measure the voltage between terminal A and ground while operating the LH mirror.
Is the voltage within the specified range?
4.0-5.5 V
Go to Step 5
Go to Step 7
5
At the LH mirror connector C2 (harness side), measure the voltage between terminals A and C while operating the LH mirror.
Is the voltage within the specified range?
4.0-5.5 V
Go to Step 10
Go to Step 8
6
Turn OFF the ignition switch.
Disconnect the LH mirror connector C2.
Turn ON the ignition switch.
At the LH mirror connector C2 (harness side), measure the voltage between terminal D and ground while operating the LH mirror.
Is the voltage within the specified range?
3.5-5.5 V
Go to Step 10
Go to Step 9
7
Check for an open or short (to ground or voltage) in CKT 788.
Was a problem found and repaired?
--
Go to Step 14
Go to Step 11
8
Check for an open or short to voltage in CKT 1251.
Was a problem found and repaired?
--
Go to Step 14
Go to Step 11
9
Check for an open or short (to ground or voltage) in CKT 784.
Was a problem found and repaired?
--
Go to Step 14
Go to Step 11
10
Replace the LH mirror assembly. Refer to Mirror Replacement .
Is the replacement complete?
--
Go to Step 14
--
11
Replace the LDCM. Refer to Door Control Module Replacement .
Is the replacement complete?
--
Go to Step 14
--
12
Check the mirror vertical position sensor circuit for an intermittent malfunction. Refer to Diagnostic Aids.
Was a problem found and repaired?
--
Go to Step 14
Go to Step 13
13
Turn OFF the ignition switch.
Reconnect or install any connectors or components that were disconnected or removed.
Turn ON the ignition switch.
Clear any DTCs. Refer to Diagnostic Trouble Code (DTC) Clearing .
Wait 2 seconds.
Does DTC B2264 set as history?
--
Go to Step 11
System OK
14
Turn OFF the ignition switch.
Reconnect or install any connectors or components that were disconnected or removed.
Turn ON the ignition switch.
Clear any DTCs. Refer to Diagnostic Trouble Code (DTC) Clearing .
Is the repair complete?
--
Go to Diagnostic System Check - Power Door Systems
DTC B2262 Horizontal Position Sensor Circuit
Circuit Description
The LH Door Control Module (LDCM) receives a horizontal position signal from the LH mirror horizontal position sensor. This signal is used by the LDCM for memory recall functions to determine the horizontal position of the LH mirror. The LDCM commands the mirror memory settings based upon the voltage level the LDCM receives back from the horizontal position sensor. The LDCM provides a 5 volt supply (CKT 788), a signal (CKT 786) and a ground (CKT 1251) to the horizontal position sensor. The horizontal position sensor is a variable resistor which the LDCM monitors the voltage level across. When a memory setting is recalled, the LDCM will command the LH mirror motor in the appropriate direction until the stored position sensor voltage level is achieved. The LDCM also monitors the LH mirror horizontal position signal circuit and can determine if the voltage level received is out of range. If the voltage level is out of range, then a malfunction is present and a DTC will set.
Conditions for Setting the DTC
The LDCM detects LH mirror horizontal position sensor signal voltage range under 0.1 volts or over 4.78 volts.
Condition must be present for 2 seconds.
Action Taken When the DTC Sets
Stores a history DTC B2262 in the LDCM memory.
This DTC can only be set as a history code even if the malfunction is current.
No driver warning message will be displayed for this DTC.
Conditions for Clearing the DTC
The LDCM detects the correct LH mirror horizontal position sensor signal voltage range (0.1-4.78 volts) for longer than 2 seconds.
Use the IPC clearing DTCs feature.
Use a scan tool.
Diagnostic Aids
The following conditions may cause an intermittent malfunction:
There is an intermittent open or short (to ground or voltage) in CKT 1251, CKT 786, or CKT 788.
The LH mirror horizontal position sensor is open or shorted internally.
If the LDCM is unable to determine the correct horizontal position, manual power mirror functions will still operate, but the LDCM will not be able to recall the correct mirror memory settings.
Using a scan tool, select LDCM Data display and monitor the mirror horizontal position data. Move the LH power mirror horizontally in both direction while monitoring the horizontal position sensor data. The voltage range should vary and stay between 0.1-4.78 volts depending on the direction of the mirror. This checks if the mirror horizontal position sensor is open or shorted in different positions.
If the DTC does not reset after the code is cleared, then the problem may be intermittent. Perform the tests shown while moving related wiring and connectors. This can often cause the malfunction to occur. Refer to Intermittents and Poor Connections .
Test Description
The numbers below refer to the step numbers on the diagnostic table:
This test checks if a DTC B2264 stored in the LDCM memory.
This test checks the mirror horizontal position sensor voltage using a scan tool. Normal mirror horizontal position sensor voltage range is between 0.1-4.78 volts.
This test checks if the LDCM is sending the correct supply voltage to the LH mirror. The supply voltage measured must be between 4.0-5.5 volts.
This test checks for an open or short to voltage in CKT 1251 or in the LDCM internal ground circuit.
This test checks the output voltage level at the LH mirror horizontal position sensor signal circuit. The signal voltage measured must be between 3.5-5.5 volts.
DTC B2262 Step
Action
Value(s)
Yes
No
1
Were you sent here from the Power Door Diagnostic System Check?
--
Go to Step 2
Go to Diagnostic System Check - Power Door Systems
2
Using a scan tool, select LDCM DTC display and check for a DTC B2264.
Is DTC B2264 stored as history?
--
Go to Step 3
Go to Step 6
3
Using a scan tool, select LDCM data display and monitor the mirror horizontal position sensor data while operating the LH mirror.
Does the scan tool display mirror horizontal position sensor voltage within the specified range?
0.1-4.78 V
Go to Step 12
Go to Step 4
4
Turn OFF the ignition switch.
Disconnect the LH mirror connector C2.
Turn ON the ignition switch.
At the LH mirror connector C2 (harness side), measure the voltage between terminal A and ground while operating the LH mirror.
Is the voltage within the specified range?
4.0-5.5 V
Go to Step 5
Go to Step 7
5
At the LH mirror connector C2 (harness side), measure the voltage between terminals A and C while operating the LH mirror.
Is the voltage within the specified range?
4.0-5.5 V
Go to Step 10
Go to Step 8
6
Turn OFF the ignition switch.
Disconnect the LH mirror connector C2.
Turn ON the ignition switch.
At the LH mirror connector C2 (harness side), measure the voltage between terminal D and ground while operating the LH mirror.
Is the voltage within the specified range?
3.5-5.5 V
Go to Step 10
Go to Step 9
7
Check for an open or short (to ground or voltage) in CKT 788.
Was a problem found and repaired?
--
Go to Step 14
Go to Step 11
8
Check for an open or short to voltage in CKT 1251.
Was a problem found and repaired?
--
Go to Step 14
Go to Step 11
9
Check for an open or short (to ground or voltage) in CKT 786.
Was a problem found and repaired?
--
Go to Step 14
Go to Step 11
10
Replace the LH mirror assembly. Refer to Mirror Replacement .
Is the replacement complete?
--
Go to Step 14
--
11
Replace the LDCM. Refer to Door Control Module Replacement .
Is the replacement complete?
--
Go to Step 14
--
12
Check the mirror horizontal position sensor circuit for an intermittent malfunction. Refer to Diagnostic Aids.
Was a problem found and repaired?
--
Go to Step 14
Go to Step 13
13
Turn OFF the ignition switch.
Reconnect or install any connectors or components that were disconnected or removed.
Turn ON the ignition switch.
Clear any DTCs. Refer to Diagnostic Trouble Code (DTC) Clearing .
Wait 2 seconds.
Does DTC B2262 set as history?
--
Go to Step 11
System OK
14
Turn OFF the ignition switch.
Reconnect or install any connectors or components that were disconnected or removed.
Turn ON the ignition switch.
Clear any DTCs. Refer to Diagnostic Trouble Code (DTC) Clearing .
Is the repair complete?
--
Go to Diagnostic System Check - Power Door Systems
--
DTC B2264 Vertical Position Sensor Circuit
Circuit Description
The LH Door Control Module (LDCM) receives a vertical position signal from the LH mirror vertical position sensor. This signal is used by the LDCM for memory recall functions to determine the vertical position of the LH mirror. The LDCM commands the mirror memory settings based upon the voltage level the LDCM receives back from the vertical position sensor. The LDCM provides a 5 volt supply (CKT 788), a signal (CKT 784) and a ground (CKT 1251) to the vertical position sensor. The vertical position sensor is a variable resistor which the LDCM monitors the voltage level across. When a memory setting is recalled, the LDCM will command the LH mirror motor in the appropriate direction until the stored position sensor voltage level is achieved. The LDCM also monitors the LH mirror vertical position signal circuit and can determine if the voltage level received is out of range. If the voltage level is out of range, then a malfunction is present and a DTC will set.
Conditions for Setting the DTC
The LDCM detects LH mirror vertical position sensor signal voltage range under 0.1 volts or over 4.78 volts.
Condition must be present for 2 seconds.
Action Taken When the DTC Sets
Stores a history DTC B2264 in the LDCM memory.
This DTC can only be set as a history code even if the malfunction is current.
No driver warning message will be displayed for this DTC.
Conditions for Clearing the DTC
The LDCM detects the correct LH mirror vertical position sensor signal voltage range (0.1-4.78 volts) for longer than 2 seconds.
Use the IPC clearing DTCs feature.
Use a scan tool.
Diagnostic Aids
The following conditions may cause an intermittent malfunction:
There is an intermittent open or short (to ground or voltage) in CKT 1251, CKT 784, or CKT 788.
The LH mirror vertical position sensor is open or shorted internally.
If the LDCM is unable to determine the correct vertical position, manual power mirror functions will still operate, but the LDCM will not be able to recall the correct mirror memory settings.
Using a scan tool, select LDCM Data display and monitor the mirror vertical position data. Move the LH power mirror vertically in both direction while monitoring the vertical position sensor data. The voltage range should vary and stay between 0.1-4.78 volts depending on the direction of the mirror. This checks if the mirror vertical position sensor is open or shorted in different positions.
If the DTC does not reset after the code is cleared, then the problem may be intermittent. Perform the tests shown while moving related wiring and connectors. This can often cause the malfunction to occur. Refer to Intermittents and Poor Connections .
Test Description
The numbers below refer to the step numbers on the diagnostic table:
This test checks if a DTC B2262 stored in the LDCM memory.
This test checks the mirror vertical position sensor voltage using a scan tool. Normal mirror vertical position sensor voltage range is between 0.1-4.78 volts.
This test checks if the LDCM is sending the correct supply voltage to the LH mirror. The supply voltage measured must be between 4.0-5.5 volts.
This test checks for an open or short to voltage in CKT 1251 or in the LDCM internal ground circuit.
This test checks the output voltage level at the LH mirror vertical position sensor signal circuit. The signal voltage measured must be between 3.5-5.5 volts.
DTC B2264 Step
Action
Value(s)
Yes
No
1
Were you sent here from the Power Door Diagnostic System Check?
--
Go to Step 2
Go to Diagnostic System Check - Power Door Systems
2
Using a scan tool, select LDCM DTC display and check for a DTC B2262.
Is DTC B2262 stored as history?
--
Go to Step 3
Go to Step 6
3
Using a scan tool, select LDCM data display and monitor the mirror vertical position sensor data while operating the LH mirror.
Does the scan tool display mirror vertical position sensor voltage within the specified range?
0.1-4.78 V
Go to Step 12
Go to Step 4
4
Turn OFF the ignition switch.
Disconnect the LH mirror connector C2.
Turn ON the ignition switch.
At the LH mirror connector C2 (harness side), measure the voltage between terminal A and ground while operating the LH mirror.
Is the voltage within the specified range?
4.0-5.5 V
Go to Step 5
Go to Step 7
5
At the LH mirror connector C2 (harness side), measure the voltage between terminals A and C while operating the LH mirror.
Is the voltage within the specified range?
4.0-5.5 V
Go to Step 10
Go to Step 8
6
Turn OFF the ignition switch.
Disconnect the LH mirror connector C2.
Turn ON the ignition switch.
At the LH mirror connector C2 (harness side), measure the voltage between terminal D and ground while operating the LH mirror.
Is the voltage within the specified range?
3.5-5.5 V
Go to Step 10
Go to Step 9
7
Check for an open or short (to ground or voltage) in CKT 788.
Was a problem found and repaired?
--
Go to Step 14
Go to Step 11
8
Check for an open or short to voltage in CKT 1251.
Was a problem found and repaired?
--
Go to Step 14
Go to Step 11
9
Check for an open or short (to ground or voltage) in CKT 784.
Was a problem found and repaired?
--
Go to Step 14
Go to Step 11
10
Replace the LH mirror assembly. Refer to Mirror Replacement .
Is the replacement complete?
--
Go to Step 14
--
11
Replace the LDCM. Refer to Door Control Module Replacement .
Is the replacement complete?
--
Go to Step 14
--
12
Check the mirror vertical position sensor circuit for an intermittent malfunction. Refer to Diagnostic Aids.
Was a problem found and repaired?
--
Go to Step 14
Go to Step 13
13
Turn OFF the ignition switch.
Reconnect or install any connectors or components that were disconnected or removed.
Turn ON the ignition switch.
Clear any DTCs. Refer to Diagnostic Trouble Code (DTC) Clearing .
Wait 2 seconds.
Does DTC B2264 set as history?
--
Go to Step 11
System OK
14
Turn OFF the ignition switch.
Reconnect or install any connectors or components that were disconnected or removed.
Turn ON the ignition switch.
Clear any DTCs. Refer to Diagnostic Trouble Code (DTC) Clearing .
Is the repair complete?
--
Go to Diagnostic System Check - Power Door Systems
