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
(See AUTOMATIC TRANSAXLE ON-BOARD DIAGNOSTIC FUNCTION[LA4AX-EL (CD4E)].)
No
Go to the next step
2
Internal or external shift linkages
•  Do any of the following malfunctions exist?
―  Damage
―  Misadjustment
―  Misassembly
Yes
Service if necessary
After servicing linkage, verify that the TR switch is properly adjusted
(See TRANSAXLE RANGE (TR) SWITCH INSPECTION[LA4AX-EL (CD4E)].)
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
(See ENGINE SYMPTOM TROUBLESHOOTING[AJ (3.0L Duratec)].)
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 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.