Park / Neutral Position Switch Circuit

WIPER AND WASHER: WIPER AND WASHER SYSTEM: Park / Neutral Position Switch Circuit

Park / Neutral Position Switch Circuit

DESCRIPTION

This circuit sends a signal of the Park/Neutral Position switch (Neutral or other) to the Windshield Wiper ECU, and the Park/Neutral Position switch (Park or other) to the Multiplex Network Body ECU.
HINT: Refer to the Automatic Transmission section for the PNP switch check Testing and Inspection.

WIRING DIAGRAM









INSPECTION PROCEDURE
HINT: Start the inspection from step 1 in the case of using the intelligent tester, and start from step 2 in the case of not using the intelligent tester.

PROCEDURE

1. READ VALUE USING INTELLIGENT TESTER
(a) Connect the intelligent tester to DLC3.
(b) Turn the ignition switch to ON and the intelligent tester main switch to ON.
(c) Select the items below in the DATA LIST and read the displays on the intelligent tester.

Wiper:





Body:





OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
NG -- Continue to next step.
2. CHECK HARNESS AND CONNECTOR
(a) Check for open and short circuit in the harness and the connector between terminal N of the windshield wiper ECU and the park/neutral position switch.
(b) Check for open and short circuit in the harness and the connector between terminal P of the instrument panel J/B assembly (driver side J/B assembly) and the park/neutral position switch.
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE