Multimeter Checks

MULTIMETER CHECKS
To carry out tests when 40 way connector is connected to the electronic control unit (ECU), it is necessary to remove the two screws securing the shroud to the connector to enable the multimeter probes to be inserted into the back of the appropriate pin.

CAUTION: Tests requiring connector to be removed from ECU, must have meter probes inserted into back of connector. If probes are inserted into connector sockets, damage will occur to sockets resulting in poor connections when connector is reconnected.

NOTE:
- The continuity test procedure for 14CUX systems is similar to that for 14CU. Note the addition of the tune select resistor test and the deletion of Test 28, which does not apply to 14CUX systems.

- All tests are carried out from the ECU harness connector unless stated otherwise in the test procedure.



TESTING

1. Release the ECU connector retaining clip and remove the connector from the ECU. Access is gained by removing the front seat base trim of the right hand front seat.

ECU Connector Pin ID:

2. Remove the connector shroud and manoeuver it along the harness until there is enough clearance to enable meter probes to be inserted into the back of the connector.
3. There are six pin numbers 1, 13, 14, 27, 28 and 40 moulded onto the rear of the connector as shown in the illustration below, for clarity the electrical leads have been omitted.

Pins 1 to 13 bottom row. Pins 14 to 27 center row. Pins 28 to 40 top row.

Connections To 40 Way Connector

Pin # 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/black
40 Black


The last color denotes the wire tracer color.