Circuit/System Testing
WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
- Crank the engine for up to 30 seconds.
- Observe the Engine DTC information with a scan tool.
- If any of the following DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle to diagnose those DTCs: P0201-P0204, P0230, P0231, P0232, P023F, P025A, P0335, P0336, P0351-P0354, P0601, P0602, P0603, P0604, P0606, P0607, P060E, P062F, P0685, P0689, P0690, P069E, P1516, P1682, P2610, P2635.
- Observe the engine speed parameter while cranking the engine.
- If engine RPM is not indicated, refer to Electronic Ignition System Diagnosis .
- Install a J 26792 (SA91992): Tester.
- Crank the engine for 15 seconds. Spark should be observed from the Spark Tester.
- If spark is not observed, refer to Electronic Ignition System Diagnosis .
- With the ignition ON and the engine OFF, test the fuses that are supplied by the powertrain relay for voltage. The test lamp should illuminate at each fuse test point.
- If the test lamp does not illuminate on at least one side of each fuse, refer to DTC P0685 or P0690 .
- Install the CH 48027-100:
Gage. Turn ON the ignition and command the fuel pump ON while observing the CH 48027-100:
Gage. The fuel pressure should be between 345-414 kPa (50-60 psi).
- If the fuel pressure is not within 345-414 kPa (50-60 psi), refer to Fuel System Diagnosis .
- Inspect for the following conditions:
- Compare the actual engine coolant temperature to the ECT parameter.
- Air filter and air intake system for restrictions and obstructions
- Test the fuel for contamination. Refer to Alcohol/Contaminants-in-Fuel Diagnosis .
- Inspect the spark plugs. Refer to Spark Plug Inspection .
- Test the exhaust system for restrictions. Refer to Restricted Exhaust .
NOTE:
Additional DTCs may set when using the fuel pump output control.