The yaw rate sensor reference voltage is monitored for an over or under voltage condition.
This diagnostic procedure supports the following DTC:
DTC C0875 Device Voltage Reference Input 2 Circuit
• | The ignition is ON. |
• | The vehicle speed is greater than 40 km/h (25 mph). |
A malfunction is detected if the supply voltage is above 2.9 volts or below 2.1 volts for more than 200 milliseconds.
• | A malfunction DTC is set. |
• | The traction control system (TCS) and vehicle stability enhancement system (VSES) are disabled. |
• | Stability Off, and SERVICE VEHICLE SOON lamp indicators are ON. |
• | The condition for the DTC is no longer present. |
• | A history DTC will clear after 100 consecutive ignition cycles if the condition for the malfunction is no longer present. |
• | Using a scan tool |
• | The electronic brake control module (EBCM) automatically clears the history DTC when a current DTC is not detected in 100 consecutive drive cycles. |
Possible causes of this DTC are the following conditions:
• | An open in the yaw rate sensor supply voltage circuit |
• | A short to ground in the yaw rate sensor supply voltage circuit |
• | A short to B+ in the yaw rate sensor supply voltage circuit |
The numbers below refer to the step numbers on the diagnostic table.
This step tests for specified voltage on the 5-volt reference signal circuit.
This step checks to see if voltage was below specified voltage.
This step checks to see if voltage was above specified voltage.
This step tests for a short to ground in the 5-volt reference circuit of the yaw/lateral accelerometer sensor.
This step tests for a short to voltage in the 5-volt reference circuit of the yaw/lateral accelerometer sensor.
This step tests for a high resistance or an open in the ground circuit of the yaw/lateral accelerometer sensor.
This step checks the yaw/lateral accelerometer sensor connector for poor connections.
This step checks the EBCM connector for poor connections.
Step | Action | Values | Yes | No |
---|---|---|---|---|
Schematic Reference: Antilock Brake System Schematics Connector End View Reference: Antilock Brake System Connector End Views | ||||
1 | Did you perform the Diagnostic System Check - Vehicle? | -- | Go to Step 2 | |
Is the voltage within the specified value? | 2.1-2.9 V | Go to Diagnostic Aids | Go to Step 3 | |
Is the voltage greater than the specified value? | 2.1 V | Go to Step 4 | Go to Step 5 | |
Using the DMM, measure the voltage between pin 16 and pin 15 of the J 39700 . Is the voltage less than the specified value? | 2.9 V | Go to Step 8 | Go to Step 6 | |
Test the 5-volt reference circuit of the yaw/lateral accelerometer sensor for a short to ground. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | -- | Go to Step 12 | Go to Step 9 | |
Test the 5-volt reference circuit of the yaw/lateral accelerometer sensor for a short to voltage. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | -- | Go to Step 12 | Go to Step 7 | |
Test the ground circuit of the yaw/lateral accelerometer sensor for a high resistance or an open. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | -- | Go to Step 12 | Go to Step 9 | |
Inspect for poor connections at the harness connector of the yaw/lateral accelerometer sensor. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | -- | Go to Step 12 | Go to Step 10 | |
Inspect for poor connections at the harness connector of the EBCM. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | -- | Go to Step 12 | Go to Step 11 | |
10 | Replace the yaw/lateral accelerometer sensor. Refer to Vehicle Yaw Sensor with Vehicle Lateral Accelerometer Replacement . Did you complete the replacement? | -- | Go to Step 12 | -- |
11 | Replace the EBCM. Refer to Control Module References for replacement, setup, and programming. Did you complete the replacement? | -- | Go to Step 12 | -- |
12 |
Does the DTC reset? | -- | Go to Step 2 | System OK |