1992 Land Rover Range Rover CountyFACTORY OEM SERVICE PROCEDURE

Trouble Code Identification Chart

TROUBLE CODE IDENTIFICATION CHART

Fault Code Definition
02  Reconnected ECM
12  Mass Airflow Sensor
14  Coolant Temperature Sensor
15  Fuel Temperature Sensor
17  Throttle Position Sensor
18  Throttle Position Sensor Input High/Mass Airflow Sensor Low
19  Throttle Position Sensor Input Low/Mass Airflow Sensor High
21  Tune Select Resistor
23  Fuel Supply
28  Air Leak
29  ECM Memory Check
34  Injector - Bank "A" (Left Bank)
36  Injector - Bank "B" (Right Bank)
40  Misfire - Bank "A" (Left Bank)
44  Lambda (Oxygen) Sensor - Bank "A" (Left Bank)
45  Lambda (Oxygen) Sensor - Bank "B" (Right Bank)
48  Idle Speed Stepper Motor
50  Misfire - Bank "B" (Right Bank)
59  Group Faults 23/28
68  Vehicle Speed Sensor
69  Starter Inhibit/Reverse Switch
88  Purge Valve Leak
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.