Diagnostic procedure
WARNING: This page is about a different car, the 2005 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
NO. 28 FUEL FILLING SHUT OFF ISSUES [AJ] DIAGNOSTIC PROCEDURE
| STEP |
INSPECTION |
ACTION |
| 1 |
- Connect WDS or equivalent to DLC-2.
- Turn ignition switch to ON position (Engine OFF).
- Retrieve any DTCs.
- Are there any DTCs displayed?
|
Yes |
DTC is displayed:
- Go to appropriate DTC test.
|
| No |
No DTC displayed:
|
| 2 |
- Remove fuel-filler pipe.
- Make sure nonreturn valve is installed properly.
- Inspect nonreturn valve operation.
- Is nonreturn valve okay?
|
Yes |
Inspect for the following:
- Improper use of fuel nozzle
- Fuel-filler pipe is not inserted correctly.
- Inspect fuel shut-off valve.
|
| No |
Nonreturn valve is installed improperly:
- Reinstall nonreturn valve to proper position.
Nonreturn valve does not operate properly:
|
| 3 |
- Verify test results.
- If okay, return to diagnostic index to service any additional symptoms.
- If malfunction remains, inspect related Service Bulletins and/or On-line Repair Information and perform repair or diagnosis.
- If vehicle is repaired, troubleshooting completed.
- If vehicle is not repaired or additional diagnostic information is not available, reprogram PCM if later calibration is available. Retest.
|