NO.29 DOES NOT UPSHIFT IN M RANGE [FS5A-EL]SM2445379
NO.29 DOES NOT UPSHIFT IN M RANGE [FS5A-EL]

id050308803400

29
Does not upshift in M range
DESCRIPTION
• Gear position indicator light in instrument cluster illuminates but vehicle does not upshift when the selector lever is pushed to “+” side.
POSSIBLE CAUSE
• Up switch (built-in selector lever component) 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. (See ON-BOARD DIAGNOSTIC SYSTEM DTC INSPECTION [FS5A-EL].) (See BASIC INSPECTION [FS5A-EL].)

Diagnostic procedure

STEP

INSPECTION

ACTION

1
Inspect the UP SW PID value using the M-MDS when the selector lever is pushed to “+” side.
Is the PID value normal?
Yes
• Inspect the instrument cluster. (See INSTRUMENT CLUSTER INSPECTION.)
• Replace the instrument cluster if necessary. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)
No
Inspect the up switch.
If the up switch has a malfunction:
• Replace the up switch. (See SELECTOR LEVER COMPONENT REMOVAL/INSTALLATION.)
If the up switch is normal:
• Inspect for continuity between selector lever component terminal A (wiring harness-side) and TCM terminal 2D (wiring harness-side).
• Repair or replace the any malfunctioning parts according to the inspection results.
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 TCM. (See TCM REMOVAL/INSTALLATION [FS5A-EL].)