DTC 45, Steering Wheel Sensor Circuit (Circuit Open Or Shorted To Battery): Testing
- Turn ignition switch to OFF position. Disconnect steering wheel speed sensor. Using DVOM, measure resistance between steering wheel speed sensor connector terminals "A" and "B", "B" and "C", and "A" and "C". Resistance between "A" and "B", and "B" and "C" should be 500-16k ohms. Resistance between "A" and "C" should be 8k-15k ohms. If all resistance measurements are not as specified, replace sensor. If all resistance measurements are as specified, go to next step.
- Turn ignition switch to RUN position. Using DVOM, measure voltage between steering wheel speed sensor connector terminal "B", then terminal "A". If greater than 5 volts is present at either terminal, repair short to voltage in 5V ref hi circuit or steering wheel sense circuit. If greater than 5 volts is not present at either terminal, go to next step.
- Turn ignition switch to OFF position. Disconnect CCM connector C2. Using DVOM, check for continuity between CCM connector C2 terminal D3 and steering wheel speed sensor connector terminal "C". If continuity is not present, check for poor connections. If connections are okay, repair open in ref lo circuit. If continuity is present, go to next step.
- Turn ignition switch to OFF position. Check for poor connections at CCM connector. If connections are okay, reconnect CCM connector and all other components. Clear DTCs and check if DTC resets. If DTC resets, replace CCM. If DTC does not reset, problem may be intermittent. Try to recreate fault while performing test by wiggling wiring and connectors. Check for poor connections at all connectors that may be causing intermittent condition.