Connection, test readings
IMPORTANT:
The readings apply to measurements taken on the control module's connector (unplugged) unless otherwise stated.
> = greater than; < = less than; ~ = alternating current (LP: LOGIC PROBE P = select pulse; p = visible pulse)
CONTROL MODULE PINOUTS REFERENCE
| Pin | Cable color | Component/Function | In/Out | Test conditions | Measure across | Test reading |
|---|---|---|---|---|---|---|
| 1 | YE | Wheel sensor, RR: reference ground | In | Rotate the wheel one turn per second | 1--2 | 100 mV AC |
| 2 | BK | Wheel sensor, RR: signal input | In | Rotate the wheel one turn per second | 2-1 | 100 mV AC |
| 3 | WH | Wheel sensor, FR: reference ground | In | Rotate the wheel one turn per second | 3--5 | 100 mV AC |
| 4 | Spare | |||||
| 5 | VT | Wheel sensor, FR: signal input | In | Rotate the wheel one turn per second | 5-3 | 100 mV AC |
| 6 | BU | Wheel sensor, FL: reference ground | In | Rotate the wheel one turn per second | 6--7 | 100 mV AC |
| 7 | RD | Wheel sensor, FL: signal input | In | Rotate the wheel one turn per second | 7-6 | 100 mV AC |
| 8 | GY | Wheel sensor, RL: reference ground | In | Rotate the wheel one turn per second | 8--9 | 100 mV AC |
| 9 | GH | Wheel sensor, RL: signal input | In | Rotate the wheel one turn per second | 9-8 | 100 mV AC |
| 10 | Spare | |||||
| 11 | WH/BK | Data link | In/Out | |||
| 12 | Spare | |||||
| 13 | Spare | |||||
| 14 | VT | Brake-light switch | In | Brake pedal depressed | 14--16 | B+ |
| Brake pedal released | 14--16 | 0 V | ||||
| 15 | YE/RD | Current (+15 circuit) | In | 15 -B+ | <0.5 V | |
| 16 | BK | Pump-motor ground | In | 16 -B- | <0.5 V | |
| 17 | RD | Current (+30 circuit) | In | 17 -B+ | <0.5 V | |
| 18 | RD | Current (+30 circuit) | In | 18 -B+ | <0.5 V | |
| 19 | BK | Ground | In | 19 -B- | <0.5 V | |
| 20 | Spare | |||||
| 21 | GY/GN | ABS warning lamp | In | 21 -B+ | <0.5 V | |
| 22 | Spare | |||||
| 23 | OG/WH | Wheel speed, rear left | Out | Rotate wheel slowly | 0/approx. 12 V Measure on MIU. |
|
| Rotate the wheel one turn per second | about 6 V | |||||
| 24 | Spare | |||||
| 25 | BK/GN | Wheel Speed Front Left | Out | Rotate wheel slowly | 0/approx. 12 V Measured in Cruise (not diesel) |
|
| Rotate the wheel one turn per second | About 6 V | |||||
| 26 | PK/BK | Wheel speed, front right | Out | Rotate wheel slowly | 0/approx. 12 V Measured in engine management system |
|
| Rotate the wheel one turn per second | About 6 V |