C0196

DTC C0196

CIRCUIT DESCRIPTION
The scan tool will report zero yaw rate as 2.5 Volts without a sensor bias present. The sensor bias compensates for electronic signal errors, temperatures changes and manufacturing differences. With the vehicle at rest the voltage should be 2.5 volts.

CONDITIONS FOR RUNNING THE DTC
- The fault is detected when the ignition is ON.
- The vehicle speed is greater than 5 km/h (3 mph).

CONDITIONS FOR SETTING THE DTC
The yaw rate input voltage is less than 0.15 Volts or greater than 4.85 Volts for less than 1 second.

ACTION TAKEN WHEN THE DTC SETS
- The code is displayed on the scan tool as DTC C0196.
- The rear wheel steering system remains functional.

CONDITIONS FOR CLEARING THE DTC
- The conditions for the DTC are not currently present.
- The rear wheel steering control module receives a clear code command from the scan tool.
- The DTC clears after 100 malfunction free ignitions cycles.

DIAGNOSTIC AIDS
- Inspect for poor connections at the harness connector of the rear wheel steering control module and Yaw Rate sensor/Lateral Accelerometer sensor connector. Refer to Diagnostic Aids For Circuit Testing And Wiring Repair procedures.
- Observe the rear wheel steering mode select switch. If all of the mode indicator LEDs are illuminated the rear wheel steering control module has lost its memory settings and the scan tool must be used to re-calibrate the rear wheel steering alignment data in the rear wheel steering control module. Refer to Measuring Wheel Alignment (With Rear Wheel Steering) Measuring Wheel Alignment (Without Rear Wheel Steering).
- The system can have DTC C0196 and 4-Wheel Steering will still function normally.




YAW RATE SENSOR - VOLTAGE

TEST DESCRIPTION

Steps 1-2:

Steps 3-4:

Steps 5-8:

Steps 9-13:

Steps 14-15:

The numbers below refer to the step numbers on the diagnostic table.
3. Tests for the proper operation of the circuit in the high voltage range.
4. Tests for the proper operation of the circuit in the low voltage range. If the fuse in the jumper opens when you perform this test, the signal circuit is shorted to voltage.
5. Tests for a short to ground in the 5 Volt reference circuit.