A comprehensive fault code scan was performed on a 2004 Range Rover L322 using an IIDTool BT V4.0 B2803. The scan revealed numerous fault codes across various modules, providing a snapshot of the vehicle’s current condition. This article will outline the identified fault codes and their potential implications.
Understanding the Fault Codes
The following fault codes were logged during the scan, organized by the corresponding vehicle module:
ABS-Brake Module
- 0x6C: Brake fluid level switch
- 0x8A: Air suspension system CAN error
- 0x5A: Temporary system deactivation
These codes suggest potential issues with the brake fluid level sensor, air suspension communication, and a possible temporary deactivation of the ABS system.
ARM-Airbag
- 0x50: Supply voltage less than 9.6V
This code indicates a low voltage supply to the airbag module, potentially caused by a weak battery or charging system issue.
ATC-Heat / Cool
- 0x30: Air quality sensor line fault
This suggests a problem with the air quality sensor or its wiring, potentially affecting the climate control system’s automatic functions.
BPM-Body Processor v4
This module displayed a significant number of fault codes, including issues with door lock mechanisms, mirror heaters, wiper relays, interior lights, and various potentiometers. These numerous codes may indicate a broader electrical problem or a faulty BPM module. Some notable codes include:
- 0xA0: Driver door mirror heater: open circuit
- 0x59: Driver door central locking mechanism broken
- 0x5C: Passenger door central locking mechanism short-circuit
- 0x4: Auxiliary input fuse defective
DSM-Driver Seat
- 0x12: Steering column radial motor – short circuit
- 0x16: Steering column axial motor – short circuit
These codes point to potential problems with the driver seat’s steering column adjustment motors.
ECM-Engine (DDE4)
- P0380-80: Glow plug relay failure – glow relay defective
- P0401-20: Extended fault path exhaust gas recirculation governor deviation – negative deviation
These engine codes indicate a faulty glow plug relay, impacting cold starts, and a deviation in the exhaust gas recirculation system.
HID-Left Headlight & HID-Right Headlight
Both headlights registered similar faults:
- 0x2A: Ignition voltage 115 Volt, operating voltage out of tolerance
- 0xD: D2S/R-Light gone off several times
These codes suggest voltage irregularities and intermittent operation of the headlights.
IP-Instrument Pack
Several chime-related faults were detected, possibly indicating issues with the instrument cluster’s warning chime system.
- 0x8D: Transmission Interface Bus fault is a critical code suggesting communication issues between the instrument cluster and the transmission.
LCM-Light Control v12+
This module logged a multitude of faults related to various lights, including low beams, sidelights, taillights, and foglights. This may indicate a fault within the LCM itself or extensive wiring issues.
PAM-Parking Aid
- 0xC: Front sounder off
This code suggests a malfunctioning front parking sensor.
PATS-AntiTheft
Several key-related faults and a random code error with the Engine Control Module were detected, which could impact the vehicle’s immobilization system.
SASM-Steering Angle
CAN bus communication errors were detected within the Steering Angle Sensor Module, which could affect stability control systems.
SCLM-Steering Lock
Faults related to coding checksum and rotation detection sensor were logged, potentially impacting the steering lock mechanism.
TBOX-Transfer Case
Multiple communication errors with various modules (INSTR2, INSTR3, DME2, DME1, ASC1, EGS, ASC2, EGS2) suggest a potential problem with the transfer case’s CAN bus communication. A battery undervoltage code (0x5212) was also logged.
TCM-Transmission
- 0x85: CAN bus transfer box timeout: General fault
This critical code indicates a communication breakdown between the transmission and the transfer case.
Conclusion
The extensive number of fault codes identified on this 2004 Range Rover L322 necessitates further diagnostics to pinpoint the root causes. While a 2004 Range Rover Scan Tool like the IIDTool can provide valuable insight into the vehicle’s condition, professional diagnosis is recommended to address these issues effectively.
