LEMON Manuals
: Even more car manuals for everyone: 1960-2025
Home
>>
Chevrolet
>>
2012
>>
Tahoe PPV
>>
Repair and Diagnosis
>>
Engine Performance
>>
System
>>
Data Communications System
>>
Diagnostic Information and Procedures
>>
DTC U1815
>>
Diagnostic Aids
September 30: LEMON manuals is back up on a temporary server! Slowness is possible
Diagnostic Aids
DTC U1815 can set current in the HPCM, ECM, and the SDGM.
If DTC U1815 is only set in the HPCM, the PIM must be replaced due to all circuits between the HPCM and MCM being internal to the PIM.