NO.4 VEHICLE MOVES IN N POSITION


BHE050301026W09

4

Vehicle moves in N position

DESCRIPTION

• Vehicle creeps in N position.
• Vehicle creeps if brake pedal is not depressed in N position.

POSSIBLE CAUSE

• Clutch burned (low clutch, low one-way clutch, low and reverse brake).
• Control valve body malfunction (improper operation, stuck, clogged oil passage).
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
Does the vehicle creep when the selector lever is moved slightly in N position?
Yes
Go to the next step.
No
Inspect the selector lever and TR switch.
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.
Reconnect the TCM.
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 the 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.)