NO.11 SHIFT CONCERN: NO FIRST GEAR ENGAGEMENT IN HIGHER GEAR (D RANGE)[LA4AX-EL (CD4E)]

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11

Shift concern: no first gear engagement in higher gear (D range)

POSSIBLE CAUSE

•  Powertrain control system malfunction

•  Internal or external shift linkage malfunction

•  Control valve body malfunction

•  Seals malfunction

•  Direct clutch malfunction

•  2/4 band and servo malfunction

11	Shift concern: no first gear engagement in higher gear (D range)
POSSIBLE CAUSE	• Powertrain control system malfunction • Internal or external shift linkage malfunction • Control valve body malfunction • Seals malfunction • Direct clutch malfunction • 2/4 band and servo 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 ― O/D OFF switch	Yes	Perform OBD test Perform DTC troubleshooting (See AUTOMATIC TRANSAXLE ON-BOARD DIAGNOSTIC FUNCTION[LA4AX-EL (CD4E)].)
1		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)].)
2		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 ― Solenoid regulator valve, shift valves are stuck, damaged, or misassembled ― Solenoid filter gasket is damaged, or misassembled ― Hydraulic passages are damaged ― SS1, SS2 solenoid malfunction	Yes	Service if necessary
3		No	Go to the next step
4	Mechanical • Do any of the following malfunctions exist? ― Seals, clutches are damaged or worn ― Direct clutch, 2/4 band, 2/4 servo are damaged or stuck on	Yes	Service if necessary
		No	Refer to the appropriate shift position for further diagnosis
		No
5	• 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.