NO.30 DOES NOT DOWNSHIFT IN M RANGE

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NO.30 DOES NOT DOWNSHIFT IN M RANGE

B3E050319090W34

30 | Does not downshift in M range
DESCRIPTION | • Gear position indicator light in instrument cluster illuminates, but the vehicle does not downshift when the selector lever is pushed to "-" side.

POSSIBLE CAUSE

• Down switch or related wiring harness malfunction

  Note

  • Before following the troubleshooting steps, make sure that the Automatic Transaxle On-board Diagnostic and Automatic Transaxle Basic Inspection are conducted.

Diagnostic procedure

STEP | INSPECTION | ACTION
--- | --- | ---
1 | Inspect the DWN SW PID value using the WDS or equivalent. (See PCM INSPECTION [ZJ, Z6].) (See PCM INSPECTION [LF].) Is the DWN SW PID value 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 PCM terminal 1AB.

2

• Verify the test results.

  - If normal, return to the diagnostic index to service any additional symptoms.
  - If the malfunction remains, inspect the related Service 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 PCM.