what is this code
Tech Contributor
Joined: Oct 1999
Posts: 40,995
Likes: 9,759
From: Charlotte, NC (formerly Endicott, NY)
One way to look at it is that you have been out excercising the car a little and drove over 200 mph.
Here is the diagnostic procedure for the code:
DTC B0516
Circuit Description
The instrument panel cluster (IPC) receives vehicle speed information from the powertrain control module (PCM). The IPC receives a 4000 pulse-per mile vehicle speed sensor (VSS) input over a dedicated input from the PCM. The PCM is responsible for processing the VSS data and sending it to the IPC. The IPC monitors the VSS output information sent from the PCM for an out of range condition.
Conditions for Setting the DTC
· The IPC detects that the vehicle speed is over 322 km/h (200 mph).
· The above condition must be present for 1 second.
Action Taken When the DTC Sets
· The IPC stores DTC B0516.
· The IPC displays vehicle speed at 322 km/h (200 mph).
Conditions for Clearing the DTC
· The IPC detects that the vehicle speed is less than 322 km/h (200 mph).
· A history DTC clears after 50 consecutive ignition cycles if the condition for the malfunction is no longer present.
· The code is cleared using on-board diagnostics.
· The IPC receives a clear code command from the scan tool.
Diagnostic Aids
· The following conditions may cause an intermittent malfunction to occur:
Test Description
The number(s) below refer to the step number(s) on the diagnostic table.
Step 2. Tests the speedometer operation. Speedometer malfunctions must be diagnosed and corrected first.
Step
Action
Value(s)
Yes
No
Schematic Reference: Instrument Cluster Schematics
Step 1
Did you perform the IPC Diagnostic System Check?
--
Go to Step 2
Go to Diagnostic System Check - Instrument Cluster
Step 2
2. Idle the engine in gear.
Go to Testing for Intermittent and Poor Connections in Wiring Systems
Go to Step 3
Step 3
Test the VSS circuit for an open, short to voltage, or short to ground. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
--
Go to Step 6
Go to Step 4
Step 4
Inspect for poor connections at the harness connector of the IPC. Refer to Testing for Intermittent and Poor Connections and to Connector Repairs in Wiring Systems.
Did you find and correct the condition?
--
Go to Step 6
Go to Step 5
Step 5
Replace the IPC. Refer to Instrument Panel Cluster (IPC) Replacement .
Did you complete the replacement?
--
Go to Step 6
--
Step 6
--
Go to Step 2
System OK
Here is the diagnostic procedure for the code:
DTC B0516
Circuit Description
The instrument panel cluster (IPC) receives vehicle speed information from the powertrain control module (PCM). The IPC receives a 4000 pulse-per mile vehicle speed sensor (VSS) input over a dedicated input from the PCM. The PCM is responsible for processing the VSS data and sending it to the IPC. The IPC monitors the VSS output information sent from the PCM for an out of range condition.
Conditions for Setting the DTC
· The IPC detects that the vehicle speed is over 322 km/h (200 mph).
· The above condition must be present for 1 second.
Action Taken When the DTC Sets
· The IPC stores DTC B0516.
· The IPC displays vehicle speed at 322 km/h (200 mph).
Conditions for Clearing the DTC
· The IPC detects that the vehicle speed is less than 322 km/h (200 mph).
· A history DTC clears after 50 consecutive ignition cycles if the condition for the malfunction is no longer present.
· The code is cleared using on-board diagnostics.
· The IPC receives a clear code command from the scan tool.
Diagnostic Aids
· The following conditions may cause an intermittent malfunction to occur:
o The PCM is unable to process the correct vehicle speed data sent from the VSS.
o Intermittent or erratic VSS operation.
· Refer to Testing for Intermittent and Poor Connections in Wiring Systems. o Intermittent or erratic VSS operation.
Test Description
The number(s) below refer to the step number(s) on the diagnostic table.
Step 2. Tests the speedometer operation. Speedometer malfunctions must be diagnosed and corrected first.
Step
Action
Value(s)
Yes
No
Schematic Reference: Instrument Cluster Schematics
Step 1
Did you perform the IPC Diagnostic System Check?
--
Go to Step 2
Go to Diagnostic System Check - Instrument Cluster
Step 2
- Turn the ignition OFF.
- Raise the drive wheels. Refer to Lifting and Jacking the Vehicle in General Information.
2. Idle the engine in gear.
- Does the vehicle speedometer indicate a vehicle speed?
Go to Testing for Intermittent and Poor Connections in Wiring Systems
Go to Step 3
Step 3
Test the VSS circuit for an open, short to voltage, or short to ground. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
--
Go to Step 6
Go to Step 4
Step 4
Inspect for poor connections at the harness connector of the IPC. Refer to Testing for Intermittent and Poor Connections and to Connector Repairs in Wiring Systems.
Did you find and correct the condition?
--
Go to Step 6
Go to Step 5
Step 5
Replace the IPC. Refer to Instrument Panel Cluster (IPC) Replacement .
Did you complete the replacement?
--
Go to Step 6
--
Step 6
- Use the scan tool in order to clear the DTCs.
- Operate the vehicle within the Conditions for Running the DTC.
--
Go to Step 2
System OK
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Joined: Jan 2006
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