Diagnostic Aids
WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Ensure that all connectors are connected properly.
DTC P0A0A
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Cigar Lighter/Auxiliary Outlets Schematics Connector End View Reference: Power Outlet Connector End Views |
|||
| 1 | Did you perform the Diagnostic System Check - Power Outlets? | Go to Step 2 | Go to Diagnostic System Check - Power Outlets |
| 2 |
Is the resistance less than 1.5 ohms? |
Go to Step 6 | Go to Step 3 |
| 3 | Test the high voltage interlock loop signal 1 and the high voltage interlock loop signal 2 for an open, short to ground or short to voltage. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 8 | Go to Step 4 |
| 4 | Inspect for poor connections at the appropriate harness connector of the shorted high voltage outlet. Refer to Testing for Intermittent Conditions and Poor Connections
and Connector Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 7 | Go to Step 5 |
| 5 | Replace the appropriate outlet. Refer to the following in Engine Electrical:
Did you complete the replacement? |
Go to Step 8 | - |
| 6 | Inspect for poor connections at the harness connector of the SGCM. Refer to Testing for Intermittent Conditions and Poor Connections
and Connector Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 8 | Go to Step 7 |
| 7 | Replace the SGCM. Refer to Starter/Generator Control Module (SGCM) Replacement (5.3L Engine w/RPO HP2)
. Did you complete the replacement? |
Go to Step 8 | - |
| 8 |
|
Go to Step 2 | System OK |