Fuel System

Fuel System

1. Verify the customer concern.
2. Visually inspect for obvious signs of mechanical or electrical damage.
3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
4. If the concern is not visually evident, refer to the Symptom Chart.

P1233, P1235, Fuel Pump Primary Circuit Failure

Possible Source(s):
- Damaged harness.
- Connector loose or corroded.
- Connector pin(s) bent or tracking between connections.
- Damaged GROUND.
- 'Popped' inertia switch.

Action(s) to take:
- GO to Pinpoint Test G92510p1.

B1201, P0460, Fuel Sender Circuit Failure

Possible Source(s):
- Worn or damaged sensor tracks.
- Damaged Harness.
- Connector loose or corroded.
- Connector pin(s) bent or tracking between connections.
- Fuel level sensor to instrument cluster circuits intermittent short or open circuit or high resistance.
- Fuel level sensor failure.
- Instrument cluster fault (incorrect fuel level data).

Action(s) to take:
- GO to Pinpoint Test G92510p2.