1990 Land Rover Range Rover BaseFACTORY OEM SERVICE PROCEDURE

Connector Identification

For pin number identification, pin numbers 1, 13, 14, 27, 28 and 40 are molded onto rear of connector. See Fig 1 .

CONNECTOR IDENTIFICATION

Pin Number (1) Cable Color
1 Red/Green
2 Brown/Orange
3 Yellow
4 Black
5 Grey/Black
6 Yellow
7 Green/Blue
8 Purple/Yellow
9 White/Light Green
10 Black/Yellow
11 Yellow/White
12 Blue/Red
13 Yellow/Blue
14 Black
15 Brown
16 Blue/Purple
17 Grey/Yellow
18 White/Pink
19 White/Grey
20 Red
21 Yellow/Black
22 Blue/Red
23 Blue
24 Blue
25 Red/Black
26 Green/White
27 Black/Grey
28 Blue/Grey
29 Orange
30 Pink
31 Black/Green
32 Grey/White
33 Black/Grey
34 Orange/Black
35 Blue/Green
36 Black/Green
37 Not Used
38 Brown/Pink
39 White/Back
40 Black
(1) The last color denotes the wire tracer color.
Fig 1: Identifying Engine Control Module Connector
G00066972Courtesy of LAND ROVER NORTH AMERICA, INC.
Factory Service Tools

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When to See a Mechanic

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

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

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