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Check Engine Light with Codes

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Old Jul 24, 2014 | 10:45 AM
  #1  
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St Jude Donor '15
Default Check Engine Light with Codes

2003 ZO6
Got check engine light pulled some codes.
I think the P1416HC is the one I should focus on not sure where
to go from here

PCM
P1416HC Secondary Air Injection (AIR) System

A0 LDCM
B2282H 12V power Feed #1 Fault Doors
U1064H Normal software function

A1 RDCM
B2283H 12v Power Feed #1 Fault doors
B2265H Mirror Verical position Fault Doors
U1064H Normal software function
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Old Jul 24, 2014 | 11:28 AM
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I did some searching and found the procdure for cleaning the AIR valve
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Old Jul 24, 2014 | 11:22 PM
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I cleaned mine, and it worked for a few years. Eventually the diaphragm got hard enough where I couldn't clean it anymore, so when I replaced the oil pressure sensor, I went ahead and changed the valve since I had the intake off.
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Old Jul 25, 2014 | 11:00 AM
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CI 6,7,8,9,11 Vet
St. Jude Donor '08
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A0 LDCM
B2282H 12V power Feed #1 Fault Doors
U1064H Normal software function

A1 RDCM
B2283H 12v Power Feed #1 Fault doors
B2265H Mirror Verical position Fault Doors
U1064H Normal software function

Sounds like you either had a LOW BATTERY or the ignition switch contacts are dirty and sometimes fail to supply the DCM the correct voltages.

U1064H Is not a Normal software function.
It indicates that some module lost coms with XXXX, Class 2 Communications malfunction issue.

That DTC is Possibly related with the ignition switch power problem wihtch is fairly well documented.

BC
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Old Jul 25, 2014 | 11:18 AM
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Joe_A
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St Jude Donor '15
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Originally Posted by Bill Curlee
A0 LDCM
B2282H 12V power Feed #1 Fault Doors
U1064H Normal software function

A1 RDCM
B2283H 12v Power Feed #1 Fault doors
B2265H Mirror Verical position Fault Doors
U1064H Normal software function

Sounds like you either had a LOW BATTERY or the ignition switch contacts are dirty and sometimes fail to supply the DCM the correct voltages.

U1064H Is not a Normal software function.
It indicates that some module lost coms with XXXX, Class 2 Communications malfunction issue.

That DTC is Possibly related with the ignition switch power problem wihtch is fairly well documented.

BC
Hi Bill
I did replace the battery about 2 months ago but did not clear or realize those codes were stored from weak battery condition. Once I clean the AIR valve I will clear all the codes. Thanks for looking
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Old Jul 25, 2014 | 11:34 AM
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Clear them now and see what comes back. I ALWAYS keep my codes cleared. That way, I know how shes running and what DTCs are new.

Doesnt hurt to clear DTCs. If something is wrong, trust me, the code will be back!

Bill
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Old Jul 25, 2014 | 12:28 PM
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St Jude Donor '15
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Originally Posted by Bill Curlee
Clear them now and see what comes back. I ALWAYS keep my codes cleared. That way, I know how shes running and what DTCs are new.

Doesnt hurt to clear DTCs. If something is wrong, trust me, the code will be back!

Bill

Good point.... I will clear them maybe the AIR valve wont come back
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