Test NTC-12: Checking Park/Neutral Switch
NOTE:
For connector terminal ID, see CONNECTOR IDENTIFICATION
. For wiring diagram, see WIRING DIAGRAMS article.
NOTE:
Park/neutral switch may be also be referred to as transmission range sensor.
- Apply parking brake. Turn ignition on with engine off. Using scan tool, read park/neutral switch state while moving shift lever through all gear positions. If scan tool does not display P/N and D/R, go to next step. If scan tool displays P/N and D/R, park/neutral switch is functioning properly. Test is complete.
- Turn ignition off. Place shift lever in Park. Disconnect Powertrain Control Module (PCM) connectors. PCM is located at driver's side front corner of engine compartment, just below air cleaner assembly.
- Using ohmmeter, check resistance between ground and terminal No. 76 (Black/Light Blue wire) on PCM connector C2 while moving shift lever through all gear positions. If resistance remains less than 5 ohms at all times, go to next step. If resistance does not remain less than 5 ohms at all times, go to step 6 .
- Ensure PCM connectors are still disconnected. Disconnect transmission range sensor connector. Transmission range sensor is located on corner of transaxle. See Fig 1 .
- Using ohmmeter, check resistance between ground and terminal No. 76 (Black/Light Blue wire) on PCM connector C2 while moving shift lever through all gear positions. If resistance remains less than 5 ohms at all times, repair short to ground on Black/Light Blue wire between PCM and transmission range sensor. Perform TEST VER-2A . If resistance does not remain less than 5 ohms at all times, replace transmission range sensor. Perform TEST VER-2A .
- Ensure PCM connectors are still disconnected. Using ohmmeter, check resistance between ground and terminal No. 76 (Black/Light Blue wire) on PCM connector C2 while moving shift lever through all gear positions. If resistance does not change from less than 5 ohms to more than 5 ohms, go to next step. If resistance changes from less than 5 ohms to more than 5 ohms, replace PCM. Perform TEST VER-2A .
- Disconnect transmission range sensor connector. Transmission range sensor is located on corner of transaxle. See Fig 1 .
- Using ohmmeter, check resistance between terminal No. 76 (Black/Light Blue wire) on PCM connector C2 and terminal No. 5 (Black/Light Blue wire) on transmission range sensor connector. If resistance is less than 5 ohms, replace transmission range sensor. Perform TEST VER-2A . If resistance is 5 ohms or more, repair open on Black/Light Blue wire between PCM and transmission range sensor. Perform TEST VER-2A .