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Home >> Cadillac >> 2003 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 633 (Antilock Brake System, Traction Control System & Stability Control System) >> Diagnostic Information and Procedures >> DTC C0196: Yaw Rate Circuit >> Test Description
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Test Description

WARNING: This page is about a different car, the 2004 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers on the diagnostic table.

  1. 2:  Tests for the proper voltage output on the 5-volt reference circuit and the proper operation of the signal circuit.
  2. 3:  Tests for possible low 5-volt reference output or a problem with the signal circuit.
  3. 4:  Tests for a short to voltage on the 5-volt reference circuit. If a short to voltage exists, other DTCs may be set for the vehicle stability system.
  4. 8:  Tests for a problem with the low reference circuit. If a short to voltage exists, other DTCs may be set for the vehicle stability system.
DTC C0196

Step Action Values Yes No
Schematic Reference: ABS Schematics 
Connector End View Reference: ABS Connector End Views 
1 Did you perform the ABS Diagnostic System Check? - Go to Step 2  Go to Diagnostic System Check - ABS 
  1. Turn OFF the ignition.
  2. Disconnect the yaw and lateral acceleration sensor harness connector.
  3. Connect a 3-amp fused jumper wire between the 5-volt reference circuit of the yaw and lateral acceleration sensor and the signal circuit of the yaw and lateral acceleration sensor.
  4. Turn ON the ignition, with the engine OFF.
  5. With the scan tool, observe the yaw rate signal voltage.
Does the scan tool indicate that the yaw rate signal parameter is in between the specified voltage range?
4.5-5.5 V Go to Step 8  Go to Step 3 
With the 3-amp fused jumper wire still connected, does the scan tool indicate that the Yaw Rate Sensor parameter is below the specified voltage value? 4.5 V Go to Step 5  Go to Step 4 
Test the 5-volt reference circuit of the yaw and lateral acceleration sensor for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
- Go to Step 12  Go to Step 7 
5 Test the 5-volt reference circuit of the yaw and lateral acceleration sensor for the following conditions:
  • An open
  • A short to ground
  • A high resistance

Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
- Go to Step 12  Go to Step 6 
6 Test the yaw rate signal circuit for the following conditions:
  • An open
  • A short to ground
  • A high resistance

Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
- Go to Step 12  Go to Step 11 
7 Test the yaw rate signal circuit for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
- Go to Step 12  Go to Step 11 
Test the low reference circuit of the yaw and lateral acceleration sensor for the following conditions:
  • An open
  • A short to voltage
  • A high resistance

Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
- Go to Step 12  Go to Step 9 
9 Inspect for poor connections at the harness connector of the yaw and lateral acceleration sensor. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
- Go to Step 12  Go to Step 10 
10 Replace the yaw and lateral acceleration sensor. Refer to Yaw Rate Sensor/Lateral Accelerometer Replacement .
Did you complete the replacement?
- Go to Step 12  -
11 Replace the electronic brake control module (EBCM). Refer to Electronic Brake Control Module Replacement (CTS)  or Electronic Brake Control Module Replacement (CTS-V) .
Did you complete the replacement?
- Go to Step 12  -
12
  1. Clear the DTCs using the scan tool.
  2. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text.
Does the DTC reset?
- Go to Step 2  System OK