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. 30 DOES NOT DOWNSHIFT IN M RANGE DIAGNOSTIC PROCEDURE [AW6A-EL] DIAGNOSTIC PROCEDURE
| STEP |
INSPECTION |
ACTION |
| 1 |
Inspect the voltage at the TCM terminal A4. (See
TCM INSPECTION
.)
Is the voltage normal |
Yes |
Inspect the instrument cluster. |
| No |
Inspect the down switch.
- If the down switch is normal, inspect for continuity between the down switch and TCM terminal A4.
|
| 2 |
- Verify test results.
- If normal, return to the diagnostic index to service any additional symptoms.
- If malfunction remains, inspect the related Service Bulletins and/or On-line Repair Information and perform repair or diagnosis.
- If the vehicle is repaired, troubleshooting completed.
- If the vehicle is not repaired or additional diagnostic information is not available, replace the TCM.
|