C2807 Code: Meaning, Causes, and Symptoms | OBD2 Codes

C2807 – Trailer Brake Output Circuit Short To Ground

 

C2807 Possible Symptoms

 

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

 

C2807 Possible Causes

 

Faulty Trailer Brake Control (TBC) Module,Trailer Brake Control (TBC) Module harness is open or shorted,Trailer Brake Control (TBC) Module circuit poor electrical connection

 

C2807 Description

 

The braking energy that is provided to the trailer is varied with a Pulse Width Modulated (PWM) signal along the circuit that switches between 0 volt and battery voltage, the higher the duty cycle the more braking power available. The Trailer Brake Control (TBC) Module varies the PWM signal based on various inputs such as the brake pressure transducer, TBC module manual slider switch and the TBC module gain buttons. With the vehicle stationary and with the manual slider switch fully to the left with a gain of 10, there should be greater than 10-12 volts supplied to pin 3 of the 7-pin trailer tow connector. Every 4 seconds the TBC module sends a voltage pulse along circuit CAT19 (BU) to pin 3 of the 7-pin trailer tow connector to determine whether or not a trailer is connected.

 

 

 

• 11 Feb, 2020
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• Chassis(C) Codes, OBD2 Codes

C2808 Code: Meaning, Causes, and Symptoms | OBD2 Codes

C2808 – Trailer Brake Output Circuit Short To Overload

 

C2808 Possible Symptoms

 

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

 

C2808 Possible Causes

 

Faulty Trailer Brake Control (TBC) Module,Trailer Brake Control (TBC) Module harness is open or shorted,Trailer Brake Control (TBC) Module circuit poor electrical connection

 

C2808 Description

 

The braking energy that is provided to the trailer is varied with a Pulse Width Modulated (PWM) signal along the circuit that switches between 0 volt and battery voltage, the higher the duty cycle the more braking power available. The Trailer Brake Control (TBC) Module varies the PWM signal based on various inputs such as the brake pressure transducer, TBC module manual slider switch and the TBC module gain buttons. With the vehicle stationary and with the manual slider switch fully to the left with a gain of 10, there should be greater than 10-12 volts supplied to pin 3 of the 7-pin trailer tow connector. Every 4 seconds the TBC module sends a voltage pulse along circuit CAT19 (BU) to pin 3 of the 7-pin trailer tow connector to determine whether or not a trailer is connected.

 

 

 

• 11 Feb, 2020
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• By yuanmaryma
• Chassis(C) Codes, OBD2 Codes

C2778 Code: Meaning, Causes, and Symptoms | OBD2 Codes

C2778 – Sensor Power Supply Failure

 

C2778 Possible Symptoms

 

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

 

C2778 Possible Causes

 

Faulty Stability Control Sensor Cluster,Stability Control Sensor Cluster harness is open or shorted,Stability Control Sensor Cluster circuit poor electrical connection

 

C2778 Description

 

The yaw rate sensor, roll rate sensor, lateral accelerometer and longitudinal accelerometer are contained in one module called the stability control sensor cluster. The sensor cluster measures the vehicle acceleration, roll rate and yaw rate, then sends the signal through a secondary, dedicated controller area network (CAN2) bus to the ABS module. The ABS module compares the information from the sensor cluster to information it receives from other sensors (brake pedal input or steering wheel rotation sensor) to determine how valid the information is and to determine if a roll-over event is about to occur. The ABS module provides power to the sensor cluster and ground. The sensor cluster and the ABS module communicate. An open circuit or a short to power or ground on any one of these 4 circuits will cause the ABS module to set a DTC. Also, if the sensor cluster is not mounted in the correct position, with the electrical connector facing the passenger seat, the ABS module will also set DTCs.

 

 

 

• 11 Feb, 2020
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• Chassis(C) Codes, OBD2 Codes

C2804 Code: Meaning, Causes, and Symptoms | OBD2 Codes

C2804 – Brake Pressure Transducer Ground Circuit Open

 

C2804 Possible Symptoms

 

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

 

C2804 Possible Causes

 

Faulty Brake Pressure Transducer,Brake Pressure Transducer harness is open or shorted,Brake Pressure Transducer circuit poor electrical connection,Faulty Trailer Brake Control (TBC) Module

 

C2804 Description

 

The Brake Pressure Transducer is attached to the brake master cylinder and is hardwired to the Trailer Brake Control (TBC) Module. The transducer and the master cylinder are installed new as an assembly. The TBC module supplies voltage to the transducer and ground along circuits. The voltage returned from the transducer and is used by the TBC module to determine current brake pressure. Trailer Brake Control (TBC) Module sets the OBDII code when the Brake Pressure Transducer is not to factory specifications.

 

 

 

• 11 Feb, 2020
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• By yuanmaryma
• Chassis(C) Codes, OBD2 Codes

C2783 Code: Meaning, Causes, and Symptoms | OBD2 Codes

C2783 – Sensor Cluster Incorrect

 

C2783 Possible Symptoms

 

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

 

C2783 Possible Causes

 

Faulty Accelerometer/Sensor Cluster,Accelerometer/Sensor Cluster harness is open or shorted,Accelerometer/Sensor Cluster circuit poor electrical connection,Faulty Anti-Lock Brake System (ABS) Module

 

C2783 Description

 

The longitudinal accelerometer is contained in the sensor cluster. The sensor cluster measures the vehicle acceleration and deceleration and then sends the signal over the controller area network (CAN) communication lines to the Anti-Lock Brake System (ABS) module. Voltage is supplied by the circuit. The ground is provided through the circuit. The CAN communication is transmitted through the circuit.

 

 

 

• 11 Feb, 2020
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• By yuanmaryma
• Chassis(C) Codes, OBD2 Codes

C2805 Code: Meaning, Causes, and Symptoms | OBD2 Codes

C2805 – Brake Pressure Transducer Ground Circuit Short To Battery

 

C2805 Possible Symptoms

 

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

 

C2805 Possible Causes

 

Faulty Brake Pressure Transducer,Brake Pressure Transducer harness is open or shorted,Brake Pressure Transducer circuit poor electrical connection,Faulty Trailer Brake Control (TBC) Module

 

C2805 Description

 

The Brake Pressure Transducer is attached to the brake master cylinder and is hardwired to the Trailer Brake Control (TBC) Module. The transducer and the master cylinder are installed new as an assembly. The TBC module supplies voltage to the transducer and ground along circuits. The voltage returned from the transducer and is used by the TBC module to determine current brake pressure. Trailer Brake Control (TBC) Module sets the OBDII code when the Brake Pressure Transducer is not to factory specifications.

 

 

 

• 11 Feb, 2020
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• By yuanmaryma
• Chassis(C) Codes, OBD2 Codes

C2791 Code: Meaning, Causes, and Symptoms | OBD2 Codes

C2791 – Power Steering Motor Circuit Open

 

C2791 Possible Symptoms

 

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

 

C2791 Possible Causes

 

Faulty Power Steering Control Module,Power Steering Control Module harness is open or shorted,Power Steering Control Module circuit poor electrical connection,Intermediate shaft U-joints,Steering column bearings,Ball Joints,Strut bearings,Steering gear

 

C2791 Description

 

The Power Steering Control Module receives the voltage to ground through the circuit. The Power Steering Control Module sends power to the torque sensor and provides a ground path for the torque sensor. The Power Steering Control Module receives signals from the torque sensor, which is dependent upon the torque being requested by the steering input. The Power Steering Control Module sends varying amperage dependent upon the desired output of the power steering control module. The Power Steering Control Module sets the OBDII code when the Power Steering Motor is not to factory specifications.

 

 

 

• 11 Feb, 2020
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• Chassis(C) Codes, OBD2 Codes

C2806 Code: Meaning, Causes, and Symptoms | OBD2 Codes

C2806 – Trailer Brake Output Circuit Short To VBattery

 

C2806 Possible Symptoms

 

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

 

C2806 Possible Causes

 

Faulty Trailer Brake Control (TBC) Module,Trailer Brake Control (TBC) Module harness is open or shorted,Trailer Brake Control (TBC) Module circuit poor electrical connection

 

C2806 Description

 

The braking energy that is provided to the trailer is varied with a Pulse Width Modulated (PWM) signal along the circuit that switches between 0 volt and battery voltage, the higher the duty cycle the more braking power available. The Trailer Brake Control (TBC) Module varies the PWM signal based on various inputs such as the brake pressure transducer, TBC module manual slider switch and the TBC module gain buttons. With the vehicle stationary and with the manual slider switch fully to the left with a gain of 10, there should be greater than 10-12 volts supplied to pin 3 of the 7-pin trailer tow connector. Every 4 seconds the TBC module sends a voltage pulse along circuit CAT19 (BU) to pin 3 of the 7-pin trailer tow connector to determine whether or not a trailer is connected.

 

 

 

• 11 Feb, 2020
• (0) Comments
• By yuanmaryma
• Chassis(C) Codes, OBD2 Codes

C2792 Code: Meaning, Causes, and Symptoms | OBD2 Codes

C2792 – Power Steering Motor Circuit Short To Battery

 

C2792 Possible Symptoms

 

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

 

C2792 Possible Causes

 

Faulty Power Steering Control Module,Power Steering Control Module harness is open or shorted,Power Steering Control Module circuit poor electrical connection,Intermediate shaft U-joints,Steering column bearings,Ball Joints,Strut bearings,Steering gear

 

C2792 Description

 

The Power Steering Control Module receives the voltage to ground through the circuit. The Power Steering Control Module sends power to the torque sensor and provides a ground path for the torque sensor. The Power Steering Control Module receives signals from the torque sensor, which is dependent upon the torque being requested by the steering input. The Power Steering Control Module sends varying amperage dependent upon the desired output of the power steering control module. The Power Steering Control Module sets the OBDII code when the Power Steering Motor is not to factory specifications.

 

 

 

• 11 Feb, 2020
• (0) Comments
• By yuanmaryma
• Chassis(C) Codes, OBD2 Codes

C2793 Code: Meaning, Causes, and Symptoms | OBD2 Codes

C2793 – Power Steering Motor Circuit Short To Ground

 

C2793 Possible Symptoms

 

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

 

C2793 Possible Causes

 

Faulty Power Steering Control Module,Power Steering Control Module harness is open or shorted,Power Steering Control Module circuit poor electrical connection,Intermediate shaft U-joints,Steering column bearings,Ball Joints,Strut bearings,Steering gear

 

C2793 Description

 

The Power Steering Control Module receives the voltage to ground through the circuit. The Power Steering Control Module sends power to the torque sensor and provides a ground path for the torque sensor. The Power Steering Control Module receives signals from the torque sensor, which is dependent upon the torque being requested by the steering input. The Power Steering Control Module sends varying amperage dependent upon the desired output of the power steering control module. The Power Steering Control Module sets the OBDII code when the Power Steering Motor is not to factory specifications.

 

 

 

• 11 Feb, 2020
• (0) Comments
• By yuanmaryma
• Chassis(C) Codes, OBD2 Codes