Bosch ESP 5.3: Error Codes & Troubleshooting (Solution)

Error codes and their possible causes for Bosch ESP version 5.3.



00000
No errors detected.



If any of the indicator lights are on...
If the indicator lights are not illuminating, one of the wires controlling them may be faulty.
The zero position learned during the zero offset calibration of the steering angle sensor (G85) while driving straight has been altered.



00257
Intake valve ABS, front left, N101.

Wiring fault, short circuit to positive/ground in the wiring between hydraulic unit N55 and control unit J104.
Intake valve N101 is defective.



00259
Intake valve ABS, front right, part number N99.

Wiring fault: Open circuit, short circuit to positive or ground in the wiring between hydraulic unit N55 and control unit J104.
Intake valve ABS N99 is defective.



00265
Front ABS pressure relief valve, left side, part number N102.

Wiring fault: Open circuit, short circuit to positive or ground in the wiring between hydraulic unit N55 and control unit J104.
Intake valve ABS N102 is defective.



00267
ABS pressure relief valve, front right, part number N100.

Wiring fault: Open circuit, short circuit to positive or ground in the wiring between hydraulic unit N55 and control unit J104.
Intake valve ABS N100 is defective.



00273
Intake valve ABS, rear right, N133.

Wiring fault: Open circuit, short circuit to positive or ground in the wiring between hydraulic unit N55 and control unit J104.
Intake valve ABS N133 is defective.



00274
Intake valve ABS rear left N134.

Wiring fault: Open circuit, short circuit to positive or ground in the wiring between hydraulic unit N55 and control unit J104.
Intake valve ABS N134 is defective.



00275
ABS pressure relief valve, rear right, N135.

Wiring fault: Open circuit, short circuit to positive or ground in the wiring between hydraulic unit N55 and control unit J104.
ABS pressure relief valve N135 is defective.



00276
Rear left ABS pressure relief valve, part number N136.

Wiring fault: Open circuit, short circuit to positive or ground in the wiring between hydraulic unit N55 and control unit J104.
ABS pressure relief valve N136 is defective.



00283
Front left speed sensor G47 or front left speed sensor G47, open circuit/short circuit to positive.
Implausible signal.

Rotor is dirty or damaged.
Wheel bearing play is excessive.
Speed sensor G47 not installed correctly.
Tachometer sensor G47 is defective.
Short circuit to ground.
Incorrect control unit version.
Wiring fault: Open circuit or short circuit to positive voltage in the wiring between speed sensor G47 and control unit J104.



00285
Crankshaft position sensor, front, right, G45, or crankshaft position sensor, front, right, G45, open circuit/short circuit to positive.
Implausible signal.

Rotor is dirty or damaged.
Wheel bearing play is excessive.
Speed sensor G45 not installed correctly.
Tachometer sensor G45 is defective.
Short circuit to ground.
Incorrect control unit version.
Wiring fault: Open circuit or short circuit to positive voltage in the wiring between speed sensor G45 and control unit J104.



00287
Rear right speed sensor G44 or rear right speed sensor G44, open circuit/short circuit to positive.
Implausible signal.

Rotor is dirty or damaged.
Wheel bearing play is excessive.
Speed sensor G44 not installed correctly.
Tachometer sensor G44 is defective.
Short circuit to ground.
Incorrect control unit version.
Wiring fault: Open circuit or short circuit to positive voltage in the wiring between speed sensor G44 and control unit J104.



00290
Rear left speed sensor G46 or rear left speed sensor G46, open circuit/short circuit to positive.
Implausible signal.

Rotor is dirty or damaged.
Wheel bearing play is excessive.
Speed sensor G46 not installed correctly.
Tachometer sensor G46 is defective.
Short circuit to ground.
Incorrect control unit version.
Wiring fault: Open circuit or short circuit to positive voltage in the wiring between speed sensor G46 and control unit J104.



00301
ABS V39 return pump.

Line interruption or transition resistance in the...
Mass connection or power supply for the return pump V39.
"Short circuit or open circuit after the positive/ground connection in the..."
Wiring between relay J105 and control unit J104.
Relay for ABS J105 return pump.
V39 or hydraulic unit failure.



00302
Relay for ABS solenoid valves, J106.

Faulty wiring or excessive resistance in the grounding connection to the solenoid valve relay J106.
Wiring fault or short circuit to positive/ground in the...
Wiring between relay J106 and control unit J104.
Relay for solenoid valves J106 or hydraulic unit N55 is defective.



00526
Brake light switch - Fault/Interruption.
Implausible signal.

"Short circuit or open circuit after the positive/ground connection in the..."
Wiring between the brake light switch and the brake light lamps (M9, M10) or the control unit J104.
Brake light bulbs, size M9 or M10, are defective.
Brake light switch is defective.
Brake light switch not properly adjusted.
Brake cylinder defective.
Brake booster malfunction.



00532
Power supply voltage signal too low.

Line interruption or excessive contact resistance in...
The power supply from terminal 15 to control unit J104, contact 1.
Voltage drops in the vehicle's electrical system.
Battery defective.



00597
Different wheel speed pulses.

Rotor is dirty or damaged.
Wheel bearing play is excessive.
Speed sensor G44, G45, G46, G47 not functioning correctly.
built-in.
Speed sensor G44, G45, G46, G47 are defective.
Different wheel and tire sizes on the vehicle.



00778
No communication from the steering angle sensor G85.

Interruption or loose connection in the data lines between the steering angle sensor (G85) and the control unit (J104).
Steering angle sensor G85 defective.
The steering angle sensor G85 is not sending any signals or is sending incomplete signals.
Incorrect settings.
The installation position of the steering angle sensor (G85) is incorrect.
The alignment is incorrect.
The steering wheel was removed, and subsequently, no zeroing/calibration was performed.



01044
Control unit incorrectly programmed.



01314
Engine control unit, control difference.

The engine control unit is unable to reduce the engine torque.



01316
Brake control unit, regulation difference.

The ESP regulation took longer than five seconds.



01418
Solenoid valve 1 for FDRN225.

Wiring fault: broken wire, short circuit to positive/ground in the wiring between...
Hydraulic unit N55 and control unit J104.
Solenoid valve 1 for FDR N225 is defective.



01419
Solenoid valve 1 for FDRN226.

Wiring fault: broken wire, short circuit to positive/ground in the wiring between...
Hydraulic unit N55 and control unit J104.
Solenoid valve 1 for FDR N226 is defective.



01420
High-pressure switching valve 1 for FDR N227.

Wiring fault: broken wire, short circuit to positive/ground in the wiring between...
Hydraulic unit N55 and control unit J104.
High-pressure switching valve 1 for FDR N227 is defective.



01421
High-pressure switching valve 1 for FDR N228.

Wiring fault: open circuit, short circuit to positive/ground in the wiring between...
Hydraulic unit N55 and control unit J104.
High-pressure switching valve 1 for FDR N228 is defective.



01422
Hydraulic pump for FDR V156.

Insufficient power supply to the hydraulic pump for FDR V156.
Short circuit to ground in the wiring between the hydraulic pump for FDR -V156 and the control unit J104.
Power supply to control unit J104 interrupted.
Fuse blown.
Short circuit to ground in the hydraulic pump for FDR V156.
Interruption in the lines between the hydraulic pump for FDR V156 and the control unit J104.
Short circuit to positive voltage in the wiring between the hydraulic pump for FDR -V156 and the control unit J104.



01423
Accelerometer G200.

The installation orientation of the G200 lateral acceleration sensor does not conform to the...
Regulation.
One of the supply lines to the G200 transverse acceleration sensor is disconnected.
The signal line for the G200 transverse acceleration sensor is disconnected.
The signal line of the lateral acceleration sensor (G200) has a short circuit.
either to the positive terminal or to the ground.
Lateral acceleration sensor G200 is defective.
Control unit J104 is defective.



01424
Encoder for rotational speed G202, signal line indicating an electrical fault in the circuit.

The signal line of the G202 rotational speed sensor is interrupted.
The signal line of the G202 rotational speed sensor has a short circuit to either the positive voltage or ground.
Encoder for axis G202 is defective.
The reference line for the G202 encoder, which measures rotational speed, is disconnected.
The reference signal line of the G202 rate sensor has a short circuit to either the positive voltage or ground.



01435
Brake pressure sensor G201.

The brake light switch is either not properly adjusted or not correctly installed.
The signal line of the brake pressure sensor G201 is interrupted.
The signal line of the brake pressure sensor G201 has a short circuit to either positive voltage or ground.
Brake pressure sensor G201 is defective.
One of the supply lines to the G201 brake pressure sensor is interrupted.



01486
System function test enabled.

The ESP driving test has been activated, see https://community.dieselschrauber.org/en/viewtopic.php?t=26751.



65535
Control unit defective.