## Fuel and Emissions Systems

#### System Descriptions (cont'd)

11-16

ECM Inputs and Outputs at Connector A (81P)

Wire side of female terminals

Terminal No. | Wire Colour | Terminal Name | Description | Signal Condition
1 | BLK | Battery minus | Ground for the ECM circuit | 0 V at all times
2 | BLK | Battery minus | Ground for the ECM circuit | 0 V at all times
3 | BLK | Battery minus | Ground for the ECM circuit | 0 V at all times
4 | LT GRN | Battery plus | Power source for the ECM circuit | Battery voltage with the ignition switch ON (II) About 0 V with the ECM power OFF
5 | RED | Battery plus | Power source for the ECM circuit of drivers injector | Battery voltage with the ignition switch ON (II) About 0 V with the ignition switch OFF
11 | RED/BLU | Vehicle immobilisation system | Detects immobiliser signal | Pulses signal with the immobiliser communication ON
12 | GRN | Coolant temperature output signal | Output coolant temperature to meter | Pulses signal with the ignition switch ON (II)
13 | YEL/BLK | System power relay | Drivers main relay | Battery voltage with the main relay OFF About 0 V with the main relay ON
15 | GRN/RED | Malfunction indication lamp (MIL) | Drivers MIL | Battery voltage with the MIL turned OFF About 0 V with the MIL turned ON
16 | YEL | EGR valve | Drivers EGR valve | About 0 V to 12 V pulses signal
17 | WHT | Variable geometric turbine | Driven variable turbine | About 0 V to 12 V pulses signal
18 | BRN/GRN | Variable swirl control valve | Drivers variable swirl control valve | Battery voltage with the variable swirl control valve not operating About 0 V with the variable swirl control valve operating
19 | PNK | Glow relay | Drivers glow relay | Battery voltage with the glow plug OFF About B+ with the glow plug ON
20 | RED | A/C compressor relay | Drivers A/C clutch (compressor) relay | Battery voltage with the A/C compressor OFF About 0 V with the A/C compressor ON

NOTICE

- In case you measure the standard voltage of ECM, remove a connector and use the Test pin box and Test harness.
- The battery power supply short circuit to 5 V power supply damages the ECM.

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