Component Tests and General Diagnostics

Diagnostic Procedure
1. CHECK PNP SW CIRCUIT
With CONSULT-II





1. Turn ignition switch to "ON" position. (Do not start engine.)
2. Select "TCM INPUT SIGNALS" in "DATA MONITOR" mode for "A/T" with CONSULT-II.
3. Read out "P", "R", "N", and "D" position switches moving selector lever to each position.
OK or NG?
OK >> GO TO 3.
NG >>GO TO 2.
2. DETECT MALFUNCTIONING ITEM
Check the following items.
- Disconnection or short-circuit in the main harness between TCM and PNP switch 1, 2, 3, 4.
- Disconnection or short-circuit in the main harness between the PNP switch 3 monitor and TCM.
- PNP switch.
OK or NG?
OK >> GO TO 3.
NG >> Repair or replace damaged parts.
3. CHECK MANUAL MODE SWITCH CIRCUIT
With CONSULT-II





1. Turn ignition switch to "ON" position. (Do not start engine.)
2. Select "TCM INPUT SIGNALS" in "DATA MONITOR" mode for "A/T" with CONSULT-II.
3. Read out ON/OFF switching action of the manual mode switch.
OK or NG?
OK >> GO TO 5.
NG >>GO TO 4.
4. DETECT MALFUNCTIONING ITEM
Check the following items.
- Manual mode switch. Refer to "DTC P1815 MANUAL MODE SWITCH".
- Check the connector housing for missing, loosening, bending or falling down of any terminal.
OK or NG?
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
5. CHECK BRAKE SWITCH CIRCUIT
With CONSULT-II





1. Turn ignition switch to "ON" position. (Do not start engine.)
2. Select "TCM INPUT SIGNALS" in "DATA MONITOR" mode for "A/T" with CONSULT-II.
OK or NG?
OK >> GO TO 6.
NG >> Refer to "Functions of CONSULT-II".
6. CHECK CLOSED THROTTLE POSITION SWITCH CIRCUIT
With CONSULT-II





1. Turn ignition switch to "ON" position. (Do not start engine.)
2. Select "TCM INPUT SIGNALS" in "DATA MONITOR" mode for "A/T" with CONSULT-II.





3. Read out ON/OFF, switching action of the accelerator pedal.
4. If DTC (P0121) is detected, go to "DTC P0121 ACCELERATOR PEDAL POSITION (APP) SENSOR".
OK or NG?
OK >> INSPECTION END
NG >> GO TO 7.
7. CHECK DTC
Perform DTC confirmation procedure.
- Refer to "CONSULT-II".
- CAN Communication Line.
OK or NG?
OK >> INSPECTION END
NG >> GO TO 8.
8. CHECK TCM INSPECTION
1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG?
OK >> INSPECTION END
NG >>
1. Repair or replace damaged parts.
2. Replace the transmission assembly.