Conditions for Clearing the DTC
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.
- A current DTC Last Test Failed clears when the diagnostic runs and passes.
- A history DTC clears after 40 consecutive warm-up cycles, if no failures are reported by this or any other non-emission related diagnostic.
- Clear the DTC with a scan tool.
DTC P0A01, P0A02, P0A03, P1A7A, P1A75, P1A76, P1A77, P1A78, or P1A79
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Engine Cooling Schematics Connector End View Reference: Cooling System Connector End Views |
|||
| 1 | Was the Engine Cooling Diagnostic System Check performed? | Go to Step 2 | Go to Diagnostic System Check - Engine Cooling |
| 2 |
|
Go to Step 3 | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems |
| 3 | With a scan tool, command the starter/generator control module (SGCM) cooling fan ON and OFF. Does the SGCM cooling fan turn ON and OFF with each command? |
Go to Step 4 | Go to Starter Generator Control Module Cooling Fan Inoperative |
| 4 | With a scan tool, command the SGCM Coolant Pump ON and OFF. Does the SGCM coolant pump turn ON and OFF with each command? |
Go to Step 5 | Go to Starter Generator Control Module Coolant Pump Inoperative |
| 5 | 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 7 | Go to Step 6 |
| 6 |
IMPORTANT:
Perform the programming procedure for the SGCM. Replace the SGCM. Refer to Starter/Generator Control Module (SGCM) Replacement (5.3L Engine w/RPO HP2)
in Engine Electrical.Did you complete the replacement? |
Go to Step 7 | - |
| 7 |
|
Go to Step 2 | System OK |