GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2002 🢒 Yukon - 2WD 🢒 Brakes 🢒 Antilock Brake System 🢒 DTC C0213-C0216

Circuit Description

The vehicle stability enhancement system (VSES) is activated when the EBCM determines that the desired yaw rate does not match the actual yaw rate. The desired yaw rate is calculated from the measured steering wheel position, vehicle speed, and lateral acceleration.

The usable output voltage range is 0.15-4.85 volts for the following sensors:

    • The yaw rate sensor
    • The longitudinal accelerometer

The usable output voltage range is 0.4-4.6 volts for the lateral accelerometer.

With no sensor bias present, a 2.5 volt signal from these sensors is interpreted by the EBCM respectively as follows:

    • Zero yaw rate
    • Zero lateral acceleration
    • Zero longitudinal acceleration

The sensor bias compensates, during VSES initialization, for sensor mounting alignment errors, electronic signal errors, temperature changes, and manufacturing differences.

Conditions for Running the DTC

C0213, C0214

The ignition is ON.

C0215

The vehicle is driven straight at a speed greater than 19 km/h (12 mph) for more than 20 seconds.

C0216

The vehicle is driven straight forward at a speed greater than 19 km/h (12 mph) for at least 10 seconds prior to making a stable turning maneuver.

Conditions for Setting the DTC

C0213

The lateral accelerometer signal is less than 0.4 volts or greater than 4.6 volts for 200 milliseconds.

C0214

The lateral accelerometer signal indicates a sudden change in lateral acceleration which exceeds a physical limitation.

C0215

The lateral accelerometer signal indicates the lateral accelerometer bias voltage is out of normal operating range.

C0216

The lateral accelerometer signal indicates a change in lateral acceleration which does not correlate with the signals from other sensors.

Action Taken When the DTC Sets
    • The EBCM disables the VSES.
    • The message center displays the SERVICE STABILITY SYSTEM message.

Conditions for Clearing the DTC

The conditions for setting the DTC are no longer present and you use the scan tool Clear DTCs function.

Diagnostic Aids
    • Inspect the vehicle for proper wheel alignment. Ensure the vehicle does not pull toward the left or right while driving straight forward on a level surface.
    • Communicate with the customer to determine the conditions under which the message center displays the Service Stability System message. Learning the conditions under which the DTC sets may help you duplicate the failure.
    • Use the Snapshot function on the scan tool in order to assist you in locating an intermittent malfunction.

Test Description

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

  1. This step tests the sensor circuitry in the high voltage range.

    2.

  2. This step tests the sensor circuitry in the low voltage range. If the fuse in the jumper opens when you perform this test, the signal circuit is shorted to voltage.

    3.

  3. This step tests the 5-volt reference circuit of the yaw rate sensor/lateral accelerometer.

Step

Action

Values

Yes

No

Schematic Reference: Antilock Brake System Schematics

1

Did you perform the ABS Diagnostic System Check?

--

Go to Step 2

Go to Diagnostic System Check - ABS

2
  1. Use the scan tool in order to clear the DTCs.
  2. Operate the vehicle within the Conditions for running the DTC as specified in the supporting text.

Does the DTC reset?

--

Go to Step 3

Go to Diagnostic Aids

3

  1. Ensure the vehicle is parked on a level surface.
  2. Turn OFF the ignition.
  3. Disconnect the yaw rate sensor/lateral accelerometer harness connector. Refer to Vehicle Yaw Sensor with Vehicle Lateral Accelerometer Replacement .
  4. Turn ON the ignition.
  5. Select the VSES Data List on the scan tool.
  6. Observe the Lateral Accelerometer Sensor Input on the scan tool.

Is the Lateral Accelerometer Sensor Input greater than the specified value?

4.75 V

Go to Step 4

Go to Step 7

4

  1. Turn OFF the ignition.
  2. Connect a 3 amp fused jumper wire between the signal circuit of the lateral accelerometer and the low reference circuit of the yaw rate sensor/ lateral accelerometer. Refer to Using Fused Jumper Wires in Wiring Systems.
  3. Turn ON the ignition.
  4. Observe the Lateral Accelerometer Sensor Input on the scan tool.

Is the Lateral Accelerometer Sensor Input less than the specified value?

0.15 V

Go to Step 5

Go to Step 8

5

  1. Disconnect the fused jumper wire.
  2. Use a DMM in order to measure the voltage between the 5-volt reference circuit and the low reference circuit of the yaw rate sensor/lateral accelerometer.

Does the voltage measure greater than the specified value?

4.75 V

Go to Step 10

Go to Step 6

6

Test the 5-volt reference circuit of the yaw rate sensor/lateral accelerometer for the following conditions.

    • An open
    • A high resistance

Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

--

Go to Step 14

Go to Step 11

7

Test the signal circuit of the lateral accelerometer for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

--

Go to Step 14

Go to Step 11

8

Test the signal circuit of the lateral accelerometer for the following conditions.

    • An open
    • A high resistance
    • A short to voltage

Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

--

Go to Step 14

Go to Step 9

9

Test the low reference circuit of the yaw rate sensor/lateral accelerometer for a high resistance or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

--

Go to Step 14

Go to Step 11

10
  1. Inspect for poor connections at the harness connector of the yaw rate sensor/lateral accelerometer. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
  2. Ensure the yaw rate sensor/lateral accelerometer is mounted securely and that the mounting bracket is not bent or otherwise damaged.

Did you find and correct the condition?

--

Go to Step 14

Go to Step 12

11

Inspect for poor connections at the harness connector of the EBCM. 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 14

Go to Step 13

12

Replace the yaw rate sensor/lateral accelerometer. Refer to Vehicle Yaw Sensor with Vehicle Lateral Accelerometer Replacement .

Did you complete the replacement?

--

Go to Step 14

--

13

Important: Following EBCM replacement, use the scan tool to perform the Tire Size Calibration procedure.

Replace the EBCM. Refer to Electronic Brake Control Module Replacement .

Did you complete the replacement?

--

Go to Step 14

--

14
  1. Use the scan tool in order to clear the DTCs.
  2. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text.

Does the DTC reset?

--

Go to Step 3

System OK