Power Steering Pressure Switch System Test: Quest
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2002 Nissan Xterra, 2002 Nissan Sentra, 2002 Nissan Quest, 2002 Nissan Pathfinder, and 2002 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
- If CONSULT-II is available, go to next step. If CONSULT-II is not available, go to step 3.
- Using CONSULT-II from DATA MONITOR mode, observe PW/ST SIGNAL in specified conditions. See CHECKING POWER STEERING SWITCH FUNCTION (QUEST) table. If PW/ST SIGNAL is as specified, go to step 6. If signal is not as specified, go to step 4.CHECKING POWER STEERING SWITCH FUNCTION (QUEST)
Condition PW/ST Signal Steering In Neutral Position OFF Steering Wheel Turned ON - Start engine. Backprobing at ECM, measure voltage between ground and ECM terminal No. 39 (Pink wire). See Figure and Figure . With steering wheel fully turned, voltage should be about zero volts. When steering wheel is not being turned, voltage should be about 5 volts. If voltage is as specified, go to step 6. If voltage is not as specified, go to next step.
- Turn ignition off. Disconnect ECM 124-pin harness connector. For ECM location, see Figure. Disconnect power steering pressure switch harness connector. For switch location, see Figure. Check continuity of Pink wire between power steering pressure switch harness connector and ECM harness connector terminal No. 39. See Figure. Continuity should exist. Also, check circuit for short to ground and short to voltage. If problem is found, repair as necessary. After repair, retest system. If no problem is found, go to next step.
- Check power steering pressure switch. See POWER STEERING PRESSURE SWITCH . If problem is found, repair circuit as necessary. After repair, retest system. If no problem is found, go to next step.
- No problem is indicated at this time. Problem may be intermittent. See INTERMITTENTS in TROUBLE SHOOTING - NO CODES article.