With JL7
DTC C0196 (With JL7)
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (Initial Inspection and Diagnostic Overview) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (Initial Inspection and Diagnostic Overview) for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions (Initial Inspection and Diagnostic Overview) provides an overview of each diagnostic category.
DTC Descriptor
DTC C0196 09
- Yaw Rate Circuit Rate of Change Above Threshold
DTC C0196 1A
- Yaw Rate Circuit Bias Level Out Of Range
DTC C0196 3B
- Yaw Rate Sensor Internal Self Test Failed
DTC C0196 75
- Yaw Rate Circuit Signal Above Allowable Range
Diagnostic Fault Information
Circuit/System Description
The lateral accelerometer and the yaw rate sensors are combined into one sensor. The sensors communicate through the serial data network to the Vehicle Stability Control Module along with other control modules to perform stability control. The vehicle stability enhancement system (active front steering with enhanced stabilitrak JL7) uses the lateral accelerometer input when calculating the desired yaw rate.
Conditions for Running the DTC
* The ignition is ON.
* DTC C0561 71 is not set as a result of a lateral acceleration sensor circuit or internal fault during the current ignition cycle.
Conditions for Setting the DTC
C0196 09
The Yaw Rate combination sensor changes by more than 455 degrees/second per second.
C0196 3B
The Yaw Rate combination sensor fails an internal self test.
C0196 39
The Yaw Rate combination sensor has an internal electronic failure.
C0196 1A
The Yaw Rate combination bias exceeds 5.7 degrees/second.
C0196 75
The Yaw Rate combination signal above allowable range.
Action Taken When the DTC Sets
* The stability control system disables the VSES for the duration of the ignition cycle.
* The driver information center (DIC) displays the SERVICE STABILITY SYS message.
* The ABS/TCS remains functional.
Conditions for Clearing the DTC
* The condition for setting the DTC is no longer present.
* The EBCM automatically clears a history DTC when a current DTC is not detected in 100 consecutive drive cycles.
Diagnostic Aids
* Check the vehicle for proper steering alignment.
* The Snapshot function on the scan tool can help find an intermittent DTC.
Reference Information
Schematic Reference
Antilock Brake System Schematics (Except JL7) (Antilock Brake System Schematics (Except RPO JL7))Antilock Brake System Schematics (JL7) (Antilock Brake System Schematics (With RPO JL7))
Connector End View Reference
Component Connector End Views (Connector Views)
Description and Operation
ABS Description and Operation (Without JL7) (ABS Description and Operation (Without RPO JL7))ABS Description and Operation (With JL7) (ABS Description and Operation (With RPO JL7))
Electrical Information Reference
* Circuit Testing (Component Tests and General Diagnostics)
* Connector Repairs (Component Tests and General Diagnostics)
* Testing for Intermittent Conditions and Poor Connections (Component Tests and General Diagnostics)
* Wiring Repairs (Component Tests and General Diagnostics)
Scan Tool Reference
Control Module References (Programming and Relearning) for Scan Tool Information
Circuit/System Verification
Ignition ON, observe the scan tool yaw rate and lateral accelerometer sensor parameter. The reading should be the same on all sensors when driving in a straight line at a constant speed greater than 20 km/h (13 mph), and will vary as the vehicle changes direction.
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the Yaw Rate/Lateral Accelerometer sensor.
2. Test for less than 1 ohm between the ground circuit terminal 1 and ground.
• If greater than the specified range, test for an open/high resistance in the ground circuit.
3. Ignition ON, verify that a test lamp illuminates between the ignition circuit terminal 4 and ground.
• If the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance.
4. Ignition OFF, disconnect the harness connector X3 at the Vehicle Stability Control Module (VSCM).
5. Ignition ON, test for 0 volts between the communication circuit terminal 52 and ground.
• If greater than the specified value, test the communication circuit for a short to voltage.
6. Test for 0 volts between the communication circuit terminal 72 and ground.
• If greater than the specified value, test the communication circuit for a short to voltage.
7. Ignition OFF, test for infinite resistance between the communication circuit terminal 52 and ground.
• If not the specified value, test the communication circuit for a short to ground.
8. Test for infinite resistance between the communication circuit terminal 72 and ground.
• If not the specified value, test the communication circuit for a short to ground.
9. Test for less than 1 ohm between the communication circuit terminals 72 and terminal 3.
• If greater than the specified range, test the communication circuit for an open/high resistance.
10. Test for less than 1 ohm between the communication circuit terminals 52 and terminal 2.
• If greater than the specified range, test the communication circuit for an open/high resistance.
11. Test for infinite resistance between the communication circuit 52 and the communication circuit 72.
• If not the specified value, test the communication circuits for a short together.
12. If all circuits test normal, replace the Yaw Rate/Lateral sensor.
Repair Instructions
Perform the Diagnostic Repair Verification (Verification Tests) after completing the diagnostic procedure.
* Vehicle Yaw Sensor with Vehicle Lateral Accelerometer Replacement (Yaw Sensor with Vehicle Lateral Accelerometer Replacement)
* Vehicle Yaw Sensor with Vehicle Lateral and Longitudinal Accelerometer Replacement (Yaw Sensor with Vehicle Lateral and Longitudinal Accelerometer Replacement)
* Control Module References (Programming and Relearning) for EBCM replacement, setup, and programming