Test readings, control module connections: K12
CONNECTOR SPECIFICATION
| Pin | Pin BOB | Lead colour | Component/Function | In/Out | Test conditions | Across | Test reading | See |
|---|---|---|---|---|---|---|---|---|
| 1 (K12) | 21 | YE/GY | Battery Voltage (+15 circuit) | In | 21-B+ | < 0.5 V | POWER SUPPLY | |
| 2 (K12) | 22 | BK | Ground | In | 22-B- | < 0.5 V | GROUND | |
| 3 (K12) | 23 | BK | Ground | In | 23-B- | < 0.1 V | GROUND | |
| 4 (K12) | 24 | - | No connection | |||||
| 5 (K12) | 25 | GN | I-Bus (+) | In/Out | 25-22 | 2.5 V | BUS COMMUNICATION | |
| 6 (K12) | 26 | YE/GY | Battery Voltage (+15 circuit) | In | 26-B+ | < 0.5 V | POWER SUPPLY | |
| 7 (K12) | 27 | RD | Battery Voltage (+30 circuit) | In | 27-B+ | < 0.5 V | POWER SUPPLY | |
| 8 (K12) | 28 | YE/WH | Ground, Sensor ground, fuel level sensor | Out | 28-B- | < 0.1 V | FUEL GAUGE | |
| 9 (K12) | 29 | GY/WH | Sensor, fuel level | In | 29-28 | 0.5-3.7 V | FUEL GAUGE | |
| 10 (K12) | 30 | OG/WH | Wheel speed, Rear left | In | Rotate wheel slowly | 30-32 | 0 V B+ (LP HI LOp) | SPEEDOMETER WITH ODOMETER AND TRIP METER |
| Rotate wheel 1/2 revolution per second | 30-22 | 15 Hz 50% (LP HI LOp) | SPEEDOMETER WITH ODOMETER AND TRIP METER | |||||
| 11 (K12) | 31 | No connection | ||||||
| 12 (K12) | 32 | WH | I-Bus (-) | 32-22 | 2.5 V | BUS COMMUNICATION |
> = greater than; < = less than; ~ = alternating current (LP: LOGIC PROBE P = select pulse; p = visible pulse)