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Home >> Mazda >> 2012 >> 6 i Touring >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 13 (Symptom Troubleshooting [Automatic Transaxle AY6A-El]) >> No.31 M Position Indicator Light Does Not Illuminate In M Position/M Position Indicator Light Illuminates In D Position >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different variant/trim than selected.
STEP INSPECTION ACTION
1 VERIFY IF MALFUNCTION CAUSE IS MULTIPLEX COMMUNICATION SYSTEM 
Yes Go to appropriate the DTC inspection.
(See DTC TABLE [MULTIPLEX COMMUNICATION SYSTEM] .)
No Go to the next step.
2 DETERMINE IF MALFUNCTION CAUSE IS M POSITION SWITCH SIGNAL OR INSTRUMENT CLUSTER 
Yes Go to Step 4.
No Go to the next step.
3 VERIFY IF MALFUNCTION CAUSE IS M POSITION SWITCH OR M POSITION SWITCH RELATED WIRING HARNESS 
Yes Inspect for open circuit in wiring harness between TCM terminal A7 and selector lever component terminal A.
Repair or replace any malfunctioning part.
No Replace the M position switch.
(See M POSITION SWITCH REMOVAL/INSTALLATION .)
4 INSPECT INSTRUMENT CLUSTER FOR MALFUNCTION 
Yes Go to the next step.
No Replace the instrument cluster.
(See INSTRUMENT CLUSTER REMOVAL/INSTALLATION .)
5
  • Verify the test results.
    • If normal, return to the diagnostic index to service any additional symptoms.
    • If the malfunction remains, inspect the related Service Bulletins and/or On-line Repair Information and perform repair or diagnosis.
      • If the vehicle is repaired, troubleshooting is completed.
      • If the vehicle is not repaired or additional diagnostic information is not available, replace the TCM.