ZDX V6-3.7L (2010)
Power Steering Pressure Switch: Testing and Inspection
PSP Switch Signal Circuit Troubleshooting
1. Start the engine, and let it idle.
2. Align the steering wheel straight ahead.
3. Check the PSP SWITCH in the DATA LIST with the HDS.
Does it indicate ON?
YES -
Go to step 4.
NO -
Go to step 14.
4. Turn the steering wheel to its full lock position.
5. Check the PSP SWITCH in the DATA LIST with the HDS.
Does it change to OFF?
YES -
The PSP switch signal circuit is OK.
NO -
Go to step 6.
6. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.
7. Disconnect the PSP switch 2P connector.
8. Start the engine.
9. Check the PSP SWITCH in the DATA LIST with the HDS.
Does it change to OFF?
YES -
Replace the PSP switch See: Maintenance/Hoses/Power Steering Line/Hose/Service and Repair/Hydraulic Power Steering Hose, Line, and Pressure
Switch Replacement.
NO -
Go to step 10.
10. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.
11. Jump the SCS line with the HDS.
12. Disconnect PCM connector A (49P).
13. Check for continuity between PSP switch 2P connector terminal No. 1 and body ground.
