Power Steering Pressure Switch: Testing and Inspection

POWER STEERING PRESSURE (PSP) SWITCH INSPECTION [L3 WITH TC]

NOTE:
- Before performing the following inspection, make sure to follow the procedure as indicated in the troubleshooting flowchart. Description and Operation

Continuity Inspection

1. Inspect the following if the power steering is inoperative (See Initial Inspection and Diagnostic Overview.):

- Power steering fluid level
- Power steering fluid leakage
- Power steering fluid pressure

2. Disconnect the PSP switch connector.

3. Start the engine.

4. Inspect for continuity between the PSP switch terminal and ground using a tester.

- If not as specified, replace the PSP switch. (See Removal and Replacement.)
- If the PSP switch is normal, but PID value is out of specification, perform the "Circuit Open/Short Inspection".
Specification






Circuit Open/Short Inspection









1. Disconnect the PCM connector. (See Service and Repair.)

2. Inspect the following harnesses for an open or short circuit. (Continuity check)

Open circuit

- If there is no continuity, there is an open circuit. Repair or replace the wiring harness.

- PSP switch terminal and PCM terminal 2T

Short circuit

- If there is no continuity, there is a short circuit. Repair or replace the wiring harness.

- PSP switch terminal and body ground