Automatic Transmission

DTC P0705 PARK/NEUTRAL POSITION (PNP) SWITCH





Description
- The PNP switch assembly includes a transaxle range switch.
- The transaxle range switch detects the selector lever position and sends a signal to the TCM.




CONSULT-III Reference Value in Data Monitor Mode









On Board Diagnosis Logic
- This is an OBD-II self-diagnostic item.
- Diagnostic trouble code "P0705 PNP SW/CIRC" with CONSULT-III is detected when TCM does not receive the correct voltage signal from the switch based on the gear position.




Possible Cause
- Harness or connectors
[The PNP switch circuit is open or shorted.]
- PNP switch




DTC Confirmation Procedure

CAUTION:
- Always drive vehicle at a safe speed.
- If performing this "DTC Confirmation Procedure" again, always turn ignition switch OFF and wait at least 10 seconds before continuing.
After the repair, perform the following procedure to confirm the malfunction is eliminated.

WITH CONSULT-III
1. Turn ignition switch ON. (Do not start engine.)
2. Select "DATA MONITOR" mode for "TRANSMISSION" with CONSULT-III.
3. Touch "START".
4. Start engine and maintain the following conditions for at least 5 consecutive seconds.
VEHICLE SPEED: 10 km/h (6 MPH) or more
THROTTLE POSI: More than 1.0/8
SLCT LVR POSI: "D" position
5. If the check result is NG, go to Diagnosis Procedure.

WITH GST
Follow the procedure "WITH CONSULT-III".




Wiring Diagram - AT - PNP/SW






TCM TERMINALS AND REFERENCE VALUES
Refer to Pinout Values and Diagnostic Parameters.




Diagnosis Procedure
1.CHECK INPUT SIGNAL
With CONSULT-III
1. Turn ignition switch ON. (Do not start engine.)
2. Select "TCM INPUT SIGNALS" in "DATA MONITOR" mode for "TRANSMISSION" with CONSULT-III.
3. Read out "P.N", "R", "D", "2" and "1" position switches moving selector lever to each position.





OK or NG
OK >> GO TO 6.
NG >> GO TO 3.
2.CHECK INPUT SIGNAL
Without CONSULT-III
1. Turn ignition switch ON. (Do not start engine.)
2. Check voltage between TCM connector terminals and ground while moving selector lever through each position.





B: Battery voltage

0: 0 V






OK or NG
OK >> GO TO 6.
NG >> GO TO 3.
3.CHECK PNP SWITCH
1. Turn ignition switch OFF.
2. Disconnect PNP switch harness connector.





3. Check continuity between PNP switch harness connector terminals.






OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4.CHECK CONTROL CABLE ADJUSTMENT
Check PNP switch again with control cable disconnected from manual shaft of A/T assembly. Refer to test group 3.
OK or NG
OK >> Adjust control cable. Refer to Adjustments .
NG >> Check PNP switch (Refer to test group 1) again after adjusting PNP switch (Refer to Service and Repair ).
- If OK, INSPECTION END
- If NG, repair or replace PNP switch. Refer to Service and Repair .
5.DETECT MALFUNCTIONING ITEM
Check the following items:
- Harness for short or open between ignition switch and PNP switch.
- Harness for short or open between PNP switch and TCM.
- Harness for short or open between combination meter and PNP switch.
- Harness for short or open between combination meter and TCM.
- 10A fuse (No.51, located in the IPDM E/R)
- Combination meter. Refer to Locations System Description .
- Ignition switch. Refer to Description and Operation .
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.
6.CHECK DTC
Perform "DTC Confirmation Procedure".
OK or NG
OK >> INSPECTION END
NG >> GO TO 7.
7.CHECK TCM
1. Check TCM input/output signal. Refer to Pinout Values and Diagnostic Parameters .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.




Component Inspection

PNP SWITCH
1. Check continuity between PNP switch harness connector terminals.















2. If NG, check again with control cable (2) disconnected from manual shaft of A/T assembly. Refer to step 1.
(1): Lock nut
(3): Manual shaft
3. If OK on step 2, adjust control cable (2). Refer to Adjustments .
4. If NG on step 2, remove PNP switch from A/T and check continuity of PNP switch terminals. Refer to step 1.
5. If OK on step 4, adjust PNP switch. Refer to Service and Repair .
6. If NG on step 4, replace PNP switch. Refer to Service and Repair, .