NO.1 VEHICLE DOES NOT MOVE IN D, M OR R POSITION [FN4A-EL]

id050301825000

1

Vehicle does not move in D, M or R position

DESCRIPTION

•  Vehicle does not move when the accelerator pedal is depressed.

POSSIBLE CAUSE

•  If the vehicle does not move in D, M or R position, basically, the malfunction is in the ATX. (Vehicle will move even with a malfunction in the PCM.) Since a malfunction is in the sensor circuit or output circuit is the cause of the malfunction in the ATX, inspect the sensors, output circuit, and the related harnesses.

1.  Clutch slipped, worn (D, M positions-Forward clutch, R position-Reverse clutch, Low and reverse brake)

•  Line pressure low

•  Shift solenoid A malfunction

•  Shift solenoid B malfunction

•  Shift solenoid D malfunction

•  Shift solenoid E malfunction

•  Pressure control solenoid malfunction

•  Control valve body malfunction

•  Body GND malfunction

2.  Selector lever malfunction

3.  Selector cable misadjustment

4.  Improper operation of parking mechanism

5.  Torque converter malfunction

Note

•  Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic and Automatic Transaxle Basic Inspection are conducted. (See ON-BOARD DIAGNOSTIC SYSTEM DTC INSPECTION [PCM (FN4A-EL)].) (See BASIC INSPECTION [FN4A-EL].)

Diagnostic procedure

STEP	INSPECTION		ACTION
1	When the vehicle is stopped on a flat, level road and engine is off, does the vehicle move when pushed? (in D, M, N or R positions and brake is released.)	Yes	Go to the next step.
1		No	Inspect for parking mechanism.
2	Disconnect the PCM connector. Measure the resistance between ground terminal at the PCM connector and body ground. Is the resistance less than 5.0 ohms?	Yes	Go to the next step.
2		No	Repair or replace the wiring harness for a possible open circuit.
3	Inspect the LPS PID value using the M-MDS. (See ON-BOARD DIAGNOSTIC SYSTEM PID/DATA MONITOR INSPECTION [PCM (FN4A-EL)].) Is the PID value normal?	Yes	Overhaul the control valve body and repair or replace any malfunctioning parts. If any problem remains: • Overhaul the transaxle and repair or replace any malfunctioning parts.
3		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 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. (See PCM REMOVAL/INSTALLATION [MZR 1.6].)