Transmission Position Sensor/Switch: Testing and Inspection

TROUBLESHOOTING HINTS
If the output of the park/neutral position switch is abnormal even though the results of the checking of the park/neutral position switch harness and of the component itself are normal, the cause is probably improper adjustment of the control cable.

INSPECTION
Using Scan Tool




Ignition switch-ST




Park/Neutral Position Switch

HARNESS INSPECTION



STEP 1. Measure the power supply voltage of the park/ neutral position switch.
- Engine control module connector: Disconnected
- Park/neutral position switch connector: Disconnected
- Ignition switch: START
Voltage (V): Battery positive voltage
OK: GO TO STEP 2
NG: Check the power supply circuit.




STEP 2. Check for continuity between the park/neutral position switch and the engine control module.
- Engine control module connector: Disconnected
- Park/neutral position switch connector: Disconnected

NOTE:
- Touch the ohmmeter probes to both ends of the harness.

OK: GO TO STEP 3
NG: Repair the harnesses. (A5 - 71, A6 - 91)




STEP 3. Measure the park/neutral position switch terminal Input voltage.
- Engine control module connector: Connected
- Park/neutral position switch connector: Disconnected
- Ignition switch: ON
Voltage (V): Battery positive voltage
OK: STOP
NG: Replace the engine control module.




For Cruise Control System
1. Disconnect the connector.
2. Check to be sure that there is continuity between connector terminals (5) and (6) when the selector lever is moved to the "N range.