Engine Oil Pressure Switch Circuit

VEHICLE PROXIMITY NOTIFICATION SYSTEM: VEHICLE PROXIMITY NOTIFICATION SYSTEM: Engine Oil Pressure Switch Circuit
- Engine Oil Pressure Switch Circuit

DESCRIPTION

The vehicle approaching speaker controller detects engine operation by monitoring the signal from the engine oil pressure switch assembly. Vehicle approaching speaker operation is disabled when the vehicle approaching speaker controller receives a signal from the engine oil pressure switch assembly indicating that the engine is operating.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. READ VALUE USING TECHSTREAM

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Combination Meter / Data List.

(e) Read the display on the Techstream.

Combination Meter





OK:

Normal conditions listed above are displayed.

NG -- GO TO METER / GAUGE SYSTEM How To Proceed With Troubleshooting
OK -- Continue to next step.

2. CHECK HARNESS AND CONNECTOR (VEHICLE APPROACHING SPEAKER CONTROLLER - ENGINE OIL PRESSURE SWITCH ASSEMBLY)

(a) Disconnect the H138 vehicle approaching speaker controller connector.

(b) Disconnect the D25 engine oil pressure switch assembly connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Symptom Related Diagnostic Procedures