Test NS-9A - Repairing No Crank Condition
WARNING: This page is about a different car, the 1995 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
For circuit and connector terminal identification, see CONNECTOR IDENTIFICATION
in this article. For wiring diagram, see WIRING DIAGRAMS
section at the end of this article.
- If vehicle is equipped with manual transmission, go to TEST NS-9B . If vehicle is equipped with automatic transmission, ensure transmission is in Park.
- Using scan tool, read park/neutral position switch sense. If park/neutral position switch senses PARK, go to next step. If park/neutral position switch does not sense PARK, repair open in park/neutral position switch ground circuit.
- Disconnect starter relay. Using scan tool in voltmeter mode, check voltage on starter relay connector, fused battery supply circuit (Red/White wire). If voltage is less than 10 volts, repair open in Black wire or Red/White wire. Perform TEST VER-1 .
- If voltage is more than 10 volts, check voltage on starter relay connector, ignition switch output circuit (Yellow/Dark Blue wire) using an external voltmeter. Hold ignition switch in RUN position while observing voltmeter. If voltage is less than 10 volts, repair open Yellow wire or Yellow/Dark Blue wire. Perform TEST VER-1
. If voltage is more than 10 volts, go to next step.WARNING: Engine may crank in following step. Keep away from moving engine parts.
- Ensure transmission is in Park and parking brake is set. Briefly connect a jumper wire between starter relay connector, fused battery voltage circuit (Red/White wire) and starter relay output circuit (Brown wire). Go to TEST NS-9C .