Mechanics

Range Rover Trouble Codes OBD1

Easy step by step guide on how to retrieve and define Range Rover OBD1 diagnostic trouble codes.

Difficulty Scale: 2 of 10

Step 1 - When a code is stored the "check engine" light will illuminate. Most of these trouble codes are made up of two digits and are accessible under the passenger seat.

Step 2 - Turn the ignition key to the "ON" position the trouble codes will start to display. The first set of blinking lights will be the "tenth" digit and the second set of blinks tell the "one" position. 

Step 3 - Example, if the first blinking light flashes off and on twice, and the second blinking light flashes once the code number is 21.

Step 4 - To restart code gathering sequence shut the key off and then back on again.

Step 5 - To clear trouble codes after the repairs have been made turn the ignition key to the "on" position, disconnect the serial link mating plug, wait ten seconds and reconnect the plug. Switch the ignition switch to the "off" position for five seconds and turn the ignition key back on again.

 

Range Rover ODB1 Trouble Code Definition Table

Code 02 - Power interruption

Code 12 - Airflow meter

Code 14 - Coolant sensor

Code 17 - Throttle potentiometer

Code 18 - Throttle potentiometer input high/airflow meter low

Code 19 - Throttle potentiometer input low/airflow meter high

Code 21 - Fuel tune select

Code 23 - Fuel supply

Code 25 - Ignition misfire

Code 28 - Air leak

Code 29 - ECU memory check

Code 34 - Injector bank A

Code 36 - Injector bank B

Code 44 - Lambda (O2) sensor A - left bank

Code 45 - Lambda (O2) sensor B - right bank

Code 48 - Stepper motor

Code 40 - Misfire bank A - left bank

Code 50 - Misfire bank B - right bank

Code 58 - Group faults 23/28

Code 59 - Fuel thermistor

Code 68 - Road speed sensor

Code 69 - Gear switch

Code 88 - Purge valve leak

AUTHOR


Written by
Co-Founder and CEO of 2CarPros.com
35 years in the automotive repair field, ASE Master Technician, Advanced Electrical and Mechanical Theory.


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