Frontier & Xterra
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 in DATA MONITOR mode, observe PW/ST SIGNAL in specified conditions. See CHECKING POWER STEERING SWITCH FUNCTION (FRONTIER & XTERRA) table. If PW/ST SIGNAL is as specified, go to step 7. If signal is not as specified, go to step 4.CHECKING POWER STEERING SWITCH FUNCTION (FRONTIER & XTERRA)
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 (Gray/Red wire). See Figure and Figure . When steering wheel is being turned quickly, voltage should be about zero volts. When steering wheel is not being turned quickly, voltage should be about 5 volts. If voltage is as specified, go to step 7. If voltage is not as specified, go to next step.
- Disconnect ECM 124-pin harness connector. For ECM location, see Figure. Check continuity of Gray/Red wire between power steering pressure switch harness connector terminal No. 1 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, go to next step. If no problem is found, go to step 6.
- Check for open or short in Gray/Red wire between power steering pressure switch and ECM. If problem is found, repair as necessary. After repair, retest system.
- Check power steering pressure switch. See POWER STEERING PRESSURE SWITCH . If problem is found, repair as necessary. After repair, retest system.
- No problem is indicated at this time. Problem may be intermittent. See INTERMITTENTS in TROUBLE SHOOTING - NO CODES article.