Mazda CX-7 2007 Workshop Manual page 1006

SYMPTOM TROUBLESHOOTING [AW6A-EL, AW6AX-EL]
NO.28 GEAR POSITION INDICATOR LIGHT ILLUMINATES IN D RANGE OR P, N, R POSITIONS[AW6A-EL,
AW6AX-EL]
28 Gear position indicator light illuminates when in D range or P, N, R positions
• Gear position indicator light in instrument cluster illuminates in D range or P, N, R position with the
DESCRIPTION
ignition switch at ON.
• M range switch or related wiring harness malfunction
POSSIBLE Note
• Before following the troubleshooting steps, make sure that the Automatic Transaxle On-Board
CAUSE
Diagnostic procedure
STEP
• Inspect the voltage at the TCM terminal A7.
1
(See 05-17-21 TCM INSPECTION[AW6A-
EL, AW6AX-EL].)
• Is the voltage normal?
• Verify test results.
2
— 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.
End Of Sie
NO.29 DOES NOT UPSHIFT IN M RANGE[AW6A-EL, AW6AX-EL]
29 Does not upshift in M range
• Gear position indicator light in instrument cluster illuminates, but the vehicle does not upshift when the
DESCRIPTION
selector lever is pushed to "+" side.
• Up switch or related wiring harness malfunction
POSSIBLE
CAUSE
Diagnostic procedure
STEP
1 Inspect the voltage at the TCM terminal A3.
(See 05-17-21 TCM INSPECTION[AW6A-EL,
AW6AX-EL].)
Is the voltage normal?
• Verify test results.
2
— 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.
End Of Sie
NO.30 DOES NOT DOWNSHIFT IN M RANGE[AW6A-EL, AW6AX-EL]
30 Does not downshift in M range
• Gear position indicator light in instrument cluster illuminates, but the vehicle does not downshift when
DESCRIPTION
the selector lever is pushed to "–" side.
• Down switch or related wiring harness malfunction
POSSIBLE
CAUSE
Diagnostic procedure
STEP
1 Inspect the voltage at the TCM terminal A4.
(See 05-17-21 TCM INSPECTION[AW6A-EL,
AW6AX-EL].)
Is the voltage normal?
05-03–28
Diagnostic and Automatic Transaxle Basic Inspection are conducted. (See 05-03-3 BASIC
INSPECTION[AW6A-EL, AW6AX-EL].)
INSPECTION
INSPECTION
INSPECTION
Yes Inspect the instrument cluster.
No Inspect the M range switch.
If the M range switch is normal, inspect for continuity
between the M range switch and TCM terminal A7.
Yes Inspect the instrument cluster.
No Inspect the up switch.
• If the up switch is normal, inspect for continuity between
the up switch and TCM terminal A3.
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.
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