Test readings, control module connections, Trionic T7: K12
PIN POINT 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, TRIONIC T7 | |
| 3 (K12) | 23 | BK | Ground | In | 23-B- | <0.1 V | GROUND, TRIONIC T7 | |
| 4 (K12) | 24 | GN | P bus (+) | In/Out | 24-22 | 2.5 V | BUS COMMUNICATION, TRIONIC T7 | |
| 5 (K12) | 25 | GN | I Bus (+) | In/Out | 25-22 | 2.5 V | BUS COMMUNICATION, TRIONIC T7 | |
| 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, TRIONIC T7 | |
| 9 (K12) | 29 | GY/WH | Sensor, fuel level | In | 29-28 | 0.5-3.7 V | FUEL GAUGE, TRIONIC T7 | |
| 10 (K12) | 30 | OG/WH | Wheel speed, rear left | In | Rotate wheel slowly | 30-32 | 0 V/B+ (LP Hlp LOp ) |
SPEEDOMETER WITH ODOMETER AND TRIP METER, TRIONIC T7 |
| Rotate wheel 1/2 revolution per second | 30-22 | 15 Hz 50% (LP Hlp LOp ) | ||||||
| 11 (K12) | 31 | WH | P bus (-) | 31-22 | 2.5 V | BUS COMMUNICATION, TRIONIC T7 | ||
| 12 (K12) | 32 | WH | I Bus (-) | 32-22 | 2.5 V | BUS COMMUNICATION, TRIONIC T7 |
> = greater than; < = less than; ~ = alternating current (LP: LOGIC PROBE P = select pulse; p = visible pulse)