NO.1 VEHICLE DOES NOT MOVE IN D RANGE, OR IN R POSITION


BHE050301026W06

1

Vehicle does not move in D range, or in R position

DESCRIPTION

• Vehicle does not move when accelerator pedal is depressed.

POSSIBLE CAUSE

• Clutch slippage (low clutch, low one-way clutch, low and reverse brake).
– In the event of clutch slippage, a DTC (incorrect gear ratio) is output.
• Insufficient or improper ATF
• Reduced line pressure
• Control valve body malfunction (improper operation, stuck, clogged oil passage)
• Insufficient torque
• Torque converter malfunction (improper operation, stuck), insufficient engine output
• Improper operation of parking device
Note
• Before following the troubleshooting steps, make sure that the Automatic Transmission On-Board Diagnostic and Automatic Transmission Basic Inspection are conducted. (See BASIC INSPECTION.)

Diagnostic procedure

STEP

INSPECTION

ACTION

1
When the vehicle is stopped on a flat, level road and the engine is off, does the vehicle move when pushed? (in D range or N, R positions with the brake pedal released)
Yes
Go to the next step.
No
Inspect for parking mechanism. (See ATX Workshop Manual.)
2
Disconnect the TCM connector.
Is the resistance between ground terminal 2M or 2Q at the TCM connector and body ground 5.0 ohms or less?
Yes
Go to the next step.
No
Repair open ground circuit.
3
Inspect the pressure control solenoid circuit.
Is it normal?
Yes
Overhaul the control valve body and repair or replace any malfunctioning parts.
(See AT Workshop Manual.)
If any problem remains, overhaul the transmission and repair or replace any malfunctioning parts.
(See AT Workshop Manual.)
No
Repair or replace any malfunctioning parts.
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 completed.
– If the vehicle is not repaired or additional diagnostic information is not available, replace the TCM.
(See TCM REMOVAL/INSTALLATION.)