NO.12 SHIFT CONCERN: NO FIRST GEAR IN 1 RANGE (FIRST GEAR IN D RANGE) [LA4AX-EL (CD4E)]

id0503a2804000

12

Shift concern: no first gear in 1 range (first gear in D range normal)

POSSIBLE CAUSE

• Powertrain control system malfunction
• Internal or external shift linkage malfunction
• Control valve body malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION

1
Powertrain control system
• Are there any malfunctions with the following?
- Electrical input/output
- Vehicle wiring harness
- PCM
- Shift solenoid No.1 (SS1), Shift solenoid No.2 (SS2)
- Transaxle range (TR) switch
Yes
Perform OBD test
Perform DTC troubleshooting
No
Go to the next step
2
Internal or external shift linkages
• Do any of the following malfunctions exist?
- Damage
- Misadjustment
- Misassembly
(See SELECTOR LEVER REMOVAL/INSTALLATION.)
Yes
Service if necessary
After servicing linkage, verify that the TR switch is properly adjusted
No
Go to the next step
3
Control valve body
• Do any of the following malfunctions exist?
- Bolts are not tightened to the specification
- Gaskets are damaged
- Shift solenoid No.2 (SS2) is stuck on
- Hydraulic passages are damaged
- Separator plates are damaged or blocked
Yes
Service if necessary
No
The malfunction is not in the automatic transaxle
Go to the engine symptom troubleshooting
4
• 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 PCM.