Park/Neutral Position (PNP) Switch
- If PNP switch is out of adjustment, voltage signals may not be correctly applied to ECM, causing a trouble code to set. See COMPONENT LOCATIONS under INTRODUCTION. Before assuming PNP switch is faulty, adjust PNP switch. See PARK/NEUTRAL POSITION (PNP) SWITCH under MISCELLANEOUS CONTROLS in ADJUSTMENTS article in the ENGINE PERFORMANCE section.
- Recheck for trouble code. If trouble code does not reset, PNP switch is okay. If trouble code resets, remove PNP switch. Check for continuity between specified terminals of PNP switch. See PNP SWITCH CONTINUITY table. See Fig 1. If continuity is not as specified, replace PNP switch. If continuity is as specified, install and adjust PNP switch.
PNP SWITCH CONTINUITY
| Application & Switch Position | Terminals No. |
|---|---|
| P | 5 & 6; 4 & 7 |
| R | 4 & 8 |
| N | 5 & 6; 4 & 10 |
| D | 4 & 9 |
| 2 | 2 & 4 |
| L | 3 & 4 |