Circuit/System Testing
- Ignition ON, engine OFF.
- Disconnect the KS harness connector.
- Measure for 2-5 volts between each of the following circuits and ground on the ECM side of the harness connector:
- The KS signal circuit, terminal 1
- The KS signal circuit, terminal 2
- If less than the specified range, test the circuits for a short to ground or an open/high resistance. If the circuits test normal, replace the ECM.
- If greater than the specified range, test the circuits for a short to voltage. If the circuits test normal, replace the ECM.
- If the circuits test normal, replace the KS.