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Home >> Mazda >> 2020 >> CX-9 Sport, AWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Symptom Troubleshooting - Automatic Transaxle >> Transaxle Overheats >> Diagnostic Procedure

Diagnostic Procedure

TRANSAXLE OVERHEATS (GW6A-EL, GW6AX-EL) DIAGNOSTIC PROCEDURE

STEP INSPECTION ACTION
1 INSPECT SIGNAL PARTS FOR MALFUNCTION
  • APP (APP sensor)
  • BOO (Brake switch)
  • ECT (ECT sensor No. 1)
    • RPM (CKP sensor)
  • Is there any malfunction?
Yes Repair or replace any malfunctioning parts according to the inspection result.
No Go to the next step.
2 INSPECT ATF LEVEL
Yes Adjust the ATF level to the specification.
(See AUTOMATIC TRANSAXLE FLUID (ATF) ADJUSTMENT .)
No Go to the next step.
3 VISUALLY INSPECT OIL COOLER
  • Visually inspect the oil cooler.
  • Is there any malfunction?
Yes Repair or replace any malfunctioning parts according to the inspection result.
(See OIL COOLER REMOVAL/INSTALLATION .)
No Go to the next step.
4 VERIFY IF MALFUNCTION CAUSE IS CONTROL VALVE BODY
  • ECU_A
  • ECU_B
  • ECU_C
  • GEAR_SEL
  • LINEDES
  • OP_SW1
  • OP_SW2
  • OP_SW3
  • OP_SW4
  • OSS
  • SS1
  • SS2
  • SS3
  • SS4
  • SSLU
  • SSLU_PRES
  • SSP
  • SSP_PRES
  • TR
  • TSS
    • VSS
  • Is there any malfunction?
Yes Replace the control valve body, then go to the next step.
(See CONTROL VALVE BODY REMOVAL/INSTALLATION .)
No Symptom troubleshooting is completed.