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C0890 SATURN

C0890 SATURN - Device Voltage Reference Output 3 Circuit Voltage

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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Possible causes

  • Faulty Brake Pedal Position Sensor
  • Brake Pedal Position Sensor harness is open or shorted
  • Brake Pedal Position Sensor circuit poor electrical connection

Tech notes

- DTC C0890 03: Device Voltage Reference Output 3 Circuit Voltage Below Threshold
- DTC C0890 07: Device Voltage Reference Output 3 Circuit Voltage Above Threshold

Possible symptoms

  • Anti-Lock Brake System (ABS) Warning Light ON
  • Engine Light ON (or Service Engine Soon Warning Light)

C0890 Saturn Description

The brake pedal position sensor is used to sense the action of the driver application of the brake pedal. The brake pedal position sensor provides an analogue voltage signal that will increase as the brake pedal is applied. The Body Control Module (BCM) provides a low reference signal and a 5 V reference voltage to the brake pedal position sensor. When the variable signal reaches a voltage threshold indicating the brakes have been applied, the BCM will apply battery voltage to the stop lamp control circuit illuminating the left and right stop lamps and the Center High Mounted Stop Lamp (CHMSL). The BCM also applies battery voltage to the transmission control module (TCM) and engine control module (ECM) via the brake applied signal circuit.
OBDII Code C0890 Saturn - Device Voltage Reference Output 3 Circuit Voltage - AutoCodes.com

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