Contents: Description of driving cycle 1 ⇩ Description of driving cycle 2 ⇩ Description of driving cycle 3 ⇩
NOTE: Generic scan tools may not be able to read the codes listed or may only be able to read 5-digit codes. Match the 5 digits from the scan tool with the first 5 digits of the listed 7-digit code to identify the fault. (the last 2 digits provide additional information readable by an approved diagnostic system).
| DTC | Description | Possible reasons | Action taken |
| C110468 | Brake running-in mode | Event Information | This is not a malfunction. The parking brake burn-in mode has been activated. Information on activating and deactivating the burn-in mode. Burn-in of the parking brake shoes (70.40.12) |
| C1A0000 | Control unit malfunction | Parking Brake Actuator Module Malfunction | Clear DTCs, perform Drive Cycle 1 to verify normal operation, refer to the appropriate drive cycle below this table. If module failure is suspected, refer to the Warranty Policy and Procedures manual. |
| C1A0016 | Parking Brake Actuator Module Low Voltage | Check the charging system, charging voltage and battery condition. Check the power and ground circuits of the parking brake actuator. Refer to the electrical manuals. Clear DTCs, perform drive cycle 3 to verify normal operation, refer to the appropriate drive cycle below this table. | |
| C1A0017 | Parking Brake Actuator Module High Voltage | Check the charging system and charging voltage. Check the parking brake actuator power supply circuits. Refer to the electrical manuals. Clear DTCs, perform drive cycle 3 to verify normal operation, refer to the appropriate drive cycle below this table. | |
| C1A004B | Control module | NOTE: This is not a malfunction. Parking brake actuator module protection trip temperature reached; usually due to overuse, with the parking brake being applied and released 15 times in a row | If the red parking brake indicator lamp flashes, the fault has occurred as a result of short-term protection. (message is displayed). Allow the parking brake module to cool for 60 seconds, and then repeat the function test. If the parking brake does not apply, check for other DTCs. Repair as necessary. Clear the DTCs, perform drive cycle 3 to check for normal operation, refer to the appropriate drive cycle below this table. |
| C1A4001 | Longitudinal Acceleration Sensor - General Electrical Malfunction | NOTE: The longitudinal acceleration sensor is integrated into the parking brake actuator module. Longitudinal acceleration sensor malfunction. | Clear the DTCs and check if the fault reoccurs when the vehicle is not driven. If a module fault is suspected, refer to the warranty policy and procedures manual. Clear the DTCs, perform drive cycle 1 to check for normal operation, refer to the appropriate drive cycle below this table. |
| C1A4002 | Longitudinal Acceleration Sensor - General Alarm Malfunction | NOTE: The longitudinal acceleration sensor is integrated into the parking brake actuator module. Longitudinal acceleration sensor - signal reliability error | Clear the DTCs and check if the fault reoccurs when the vehicle is stationary. Perform the Longitudinal Acceleration Sensor Calibration Procedure. Ensure the vehicle is on a level surface before calibrating the sensor. Perform the calibration procedure in the approved diagnostic system configuration menu. If calibration is not successful, ensure that the parking brake actuator module is installed correctly. If a faulty module is suspected, refer to the warranty policy and procedures manual. Clear the DTCs, perform Drive Cycle 2 to verify normal operation, refer to the appropriate Drive Cycle below this table. |
| C1A4054 | Longitudinal acceleration sensor - no calibration | NOTE: The longitudinal acceleration sensor is integrated into the parking brake actuator module. The longitudinal acceleration sensor is not calibrated | Clear DTCs and perform the Longitudinal Acceleration Sensor Calibration Procedure. Ensure the vehicle is on a level surface before calibrating the sensor. Perform the calibration procedure in the approved diagnostic system configuration menu. Repeat the functional test. Clear DTCs, perform Drive Cycle 1 to verify normal operation, refer to the appropriate drive cycle below this table. |
| C1A4101 | Clutch Pedal Sensor Circuit - General Electrical Malfunction | Check the clutch pedal switch and electrical circuits. Refer to the electrical manuals. Install a new clutch pedal switch if necessary. Clear DTCs, perform Drive Cycle 1 to verify normal operation, refer to the appropriate Drive Cycle below this table. | |
| C1A4102 | Clutch Pedal Sensor Circuit General Signal Malfunction | Check the clutch pedal switch and circuits. Refer to the electrical manuals. Install a new clutch pedal switch if necessary. Clear DTCs, perform Drive Cycle 2 to verify normal operation, refer to the appropriate Drive Cycle below this table. | |
| C1A4300 | Electric motor power supply circuit | NOTE: The electric motor is integrated into the parking brake actuator module. | Ensure the parking brake cables are connected correctly and are not loose/damaged. If the cables need to be reconnected, use the approved diagnostic system to move the cables to the installed position to ensure maximum free cable length. Check the condition and adjustment of the brake shoes. Parking Brake Shoe and Lining Adjustment (70.40.11). Brake Disc (70.12.33). Parking Brake Shoes (70.40.09). If the parking brake actuator module is jammed, cycle the ignition off and on. If the parking actuator module is not controlled by the switch, use the approved diagnostic system to engage the module using the "unjam" application in the Setup and Configuration Menu. Repeat the Function Test. If a module fault is suspected, refer to the Warranty Policy and Procedures Manual. Clear DTCs, perform Drive Cycle 1 to verify normal operation, refer to the appropriate Drive Cycle below this table. |
| C1A4301 | Electric motor power supply circuit | NOTE: The electric motor is built into the parking brake actuator module. Internal fault in the electric motor circuit | Clear DTCs, perform drive cycle 3 to verify normal operation, refer to the appropriate drive cycle below this table. If module failure is suspected, refer to the warranty policy and procedures manual. |
| C1A4662 | Parking Brake Actuator Module Signal Validation Test | Inspect the parking brake cables for dirt, pinching, or damage. Check that the parking brake pads are adjusted correctly. Adjusting the parking brake pads and linings (30.40.11) Check the parking brake pads for excessive wear. Brake disc (70.12.33). Parking brake pads (70.40.09) Check the electrical circuits of the parking brake actuator module. Refer to the electrical equipment manuals. If a module malfunction is suspected, please refer to the Warranty Service Policies and procedures manual. | |
| C1A4701 | Force Sensor - General Electrical Fault | NOTE: The force sensor is integrated into the parking brake actuator module. Electrical fault in internal force sensor | Clear DTCs, perform Drive Cycle 1 to verify normal operation, refer to the appropriate drive cycle below this table. If module failure is suspected, refer to the Warranty Policy and Procedures manual. |
| C1A4702 | Force Sensor - General Alarm Fault | NOTE: The force sensor is integrated into the parking brake actuator module. Internal Force Sensor Signal Reliability Error | Clear DTCs, perform drive cycle 3 to verify normal operation, refer to the appropriate drive cycle below this table. If module failure is suspected, refer to the warranty policy and procedures manual. |
| C1A4754 | Force sensor - no calibration | NOTE: The force sensor is integrated into the parking brake actuator module. The internal force sensor is not calibrated | Clear DTCs, perform Drive Cycle 1 to verify normal operation, refer to the appropriate drive cycle below this table. If module failure is suspected, refer to the Warranty Policy and Procedures manual. |
| C1A4801 | Test Light Circuit - General Electrical Fault | Check the electrical circuit between the parking brake actuator and the instrument cluster warning lamp. Refer to the electrical manuals. Repair as necessary. If a module fault is suspected, refer to the warranty policy and procedures manual. Clear DTCs, perform Drive Cycle 1 to verify normal operation, refer to the appropriate drive cycle listed below this table. | |
| C1A5368 | Manual emergency release activated - automatic re-engagement (locking) of the parking brake actuator module cable did not work | Make sure the emergency release cable is not permanently tightened (sticking). Check the parking brake cables for damaged or loose connections. Try re-engaging the parking brake by pulling the activation switch TWICE. Clear the DTC and perform the next drive cycle. Tighten the emergency release cable. Hold the parking brake switch in the activated position until the parking brake motor stops. (this may take up to 20 sec). Move the switch to the neutral position. For manual emergency release of the parking brake actuator module Parking brake | |
| C1A5564 | Ignition Switch Input Circuit - Signal Confidence Error | Check the ignition circuits and "key inserted" of the parking brake actuator module. Refer to the electrical equipment manuals. Repair it if necessary. Delete the DTC codes, run ride cycle 1. To check normal operation, refer to the corresponding ride cycle listed below this table. | |
| U007388 | Parking brake actuator module data bus is disabled | Perform a full readout of the relevant DTCs indicating a CAN bus or module fault. Check the electrical circuits and CAN. Repair as necessary. If a module fault is suspected, refer to the warranty policy and procedures manual. Clear the DTCs, perform Drive Cycle 1 to verify normal operation, refer to the appropriate drive cycle listed below this table. | |
| U010087 | Lost Communication with Engine Control Module (ECM) - No Message | Perform a full read of the associated CAN bus or module fault DTCs. Lost Communication Codes indicate that a module is not receiving CAN information from another module, but its own data transmission is normal. Check for associated Invalid Data DTCs in other modules, as well as other ECM DTCs. Repair as necessary. Clear the DTCs, perform Drive Cycle 1 to verify normal operation, refer to the appropriate Drive Cycle below this table. If the DTC resets, perform a network integrity test. Analyze the DTCs to identify possible general trends, such as multiple modules reporting loss of communication with one specific module. Repair as necessary. This DTC may be set after/during cranking with a low battery. If a module fault is suspected, refer to the Warranty Policy and Procedures Manual. Clear DTCs, perform Drive Cycle 1 to verify normal operation, refer to the appropriate Drive Cycle below this table. | |
| U010187 | Lost Communication With Transmission Control Module (TCM) or Transfer Case Control Module - No Message | Perform a full read of the associated CAN bus or module fault DTCs. Lost Communication Codes indicate that a module is not receiving CAN information from another module, but its own data transmission is normal. Check for associated Invalid Data DTCs in other modules, as well as other ECM DTCs. Repair as necessary. Clear the DTCs, perform Drive Cycle 1 to verify normal operation, refer to the appropriate Drive Cycle below this table. If the DTC remains after clearing, perform a network integrity test. Analyze the DTCs to identify possible general trends, such as multiple modules reporting loss of communication with one specific module. Repair as necessary. This DTC may be logged after/during low battery cranking. If a module fault is suspected, refer to the Warranty Policy and Procedures Manual. Clear DTCs, perform Drive Cycle 1 to verify normal operation, refer to the appropriate Drive Cycle below this table. | |
| U012287 | Lost Communication with Vehicle Dynamics Control Module - No Message | Perform a full read of the associated CAN bus or module fault DTCs. Lost Communication Codes indicate that a module is not receiving CAN information from another module, but its own data transmission is normal. Check for associated Invalid Data DTCs in other modules, as well as other DTCs for the Vehicle Dynamics Control Module. Repair as necessary. Clear the DTCs, perform Drive Cycle 1 to verify normal operation, refer to the appropriate Drive Cycle below this table. If the DTC resets, perform a Network Integrity Test. Analyze the DTCs to identify possible general trends, such as multiple modules reporting loss of communication with one specific module. Repair as necessary. This DTC may be logged after/during cranking with a low battery. If a module fault is suspected, refer to the Warranty Policy and Procedures Guide. Clear DTCs, perform Drive Cycle 1 to verify normal operation, refer to the appropriate Drive Cycle below this table. | |
| U015587 | Lost connection with instrument cluster - no message | Perform a full read of the associated CAN bus or module fault DTCs. Lost Communication codes indicate that a module is not receiving CAN information from another module, but its own data transmission is normal. Check for associated Invalid Data DTCs in other modules, as well as other instrument cluster DTCs. Repair as necessary. Clear the DTCs, perform Drive Cycle 1 to verify normal operation, refer to the appropriate Drive Cycle below this table. If the DTC resets, perform a network integrity test. Analyze the DTCs to identify possible general trends, such as multiple modules reporting loss of communication with one specific module. Repair as necessary. This DTC may be logged after/during low battery cranking. If a module fault is suspected, refer to the Warranty Policy and Procedures Manual. Clear DTCs, perform Drive Cycle 1 to verify normal operation, refer to the appropriate Drive Cycle below this table. | |
| U030055 | Internal control module software incompatibility | Make sure the correct module is installed in the vehicle. Make sure the vehicle configuration file (CCF) is used. Reprogram (CCF) if necessary. | |
| U1A0300 | Vehicle configuration parameter | Check for Lost Communication/Invalid Data DTCs. Repair as necessary. Ensure the correct module is installed in the vehicle. Ensure the correct Vehicle Configuration File (CCF) is being used. Reprogram (CCF) as necessary. Clear DTCs, perform Drive Cycle 1 to verify normal operation, refer to the appropriate Drive Cycle below this table. | |
| U1A1449 | CAN initialization error (Control Area Network) | Parking Brake Actuator Module Malfunction | Clear DTCs, perform Drive Cycle 1 to verify normal operation, refer to the appropriate drive cycle below this table. If module failure is suspected, refer to the Warranty Policy and Procedures manual. |
| U200201 | Parking brake switch | Please note that this DTC may be set when the parking brake switch is very slow to operate. Check the parking brake switch and circuits. When the parking brake switch is closed, measure the resistance between the following terminals of the parking brake actuator module: between C2178-B3 and C2178-C4 (from 2584 to 2636 Ohm) and between C2178-B4 and C2178-C3 (from 2584 to 2636 Ohm). Refer to the electrical manuals. Install a new parking brake switch if necessary. Clear DTCs, perform Drive Cycle 1 to verify normal operation, refer to the appropriate drive cycle below this table. |
Description of driving cycle 1
- Ignition is on
- Make sure that attempts to activate the parking brake (via a switch or diagnostic command) were not undertaken for at least 3 s
- Repeat the functional test
Description of driving cycle 2
- Ignition is on
- Drive the car at a constant speed of 20 km/h or slightly higher in 2nd gear
- While driving at a constant speed of 20 km/h or slightly higher, apply the parking brake using the parking brake switch.
- Press the brake pedal
Description of driving cycle 3
- Ignition is on
- Make sure the vehicle is stationary and the parking brake is released.
- Hold the parking brake switch in the engaged position until the parking brake motor stops. (this may take up to 5 sec).
- Move the parking brake switch to neutral and do not apply it for 2 seconds.
- Hold the parking brake switch in the released position. (keeping your foot on the brake pedal), until the parking brake motor stops (this may take up to 5 sec).
- Move the parking brake switch to neutral position.
Data taken from the website www.LRman.ru
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