Connectors
MICROSQUIRT-A
face not drawn
| Point | Function | Family | Evidence | Destination |
|---|---|---|---|---|
| +12V In | Power in | single_source | SP-14V-1 | |
| CANH | CAN high | single_source | not connected | |
| CANL | CAN low | single_source | not connected | |
| VR2+ | Crank / cam | single_source | OEM-2-HCam position (CMP) | |
| SPAREADC2 (MAF) | Analog in | single_source | OEM-2-LMass air flow (MAF) | |
| FLEX | Digital in | single_source | OEM-1-GPower steering pressure switch | |
| FIDLE | Low-side out | single_source | OEM-3-NFuel pump relay | |
| FP (pump) | Low-side out | single_source | OEM-1-ICondenser fan relay | |
| INJ 1 | Injector | single_source | OEM-3-WInjector 1 | |
| INJ 2 | Injector | single_source | OEM-3-XInjector 2 | |
| SPK B (IGN2) | Ignition | single_source | OEM-3-GIgnition 1 (coils 1+4, wasted spark) | |
| SPK A (IGN 1) | Ignition | single_source | OEM-3-HIgnition 2 (coils 2+3, wasted spark) | |
| RX | No data | single_source | not connected | |
| TX | No data | single_source | not connected | |
| BOOT LOAD | No data | single_source | not connected | |
| ALED | Low-side out | single_source | OEM-1-RCooling fan relay | |
| WLED | Low-side out | single_source | OEM-1-SA/C clutch relay | |
| Sensor Ground | Sensor ground | single_source | SP-0V-1 | |
| Serial Ground | Sensor ground | single_source | SP-0V-1 | |
| Sensor Ground | Sensor ground | single_source | SP-0V-1 | |
| VR2- | Crank / cam | single_source | not connected | |
| POWER GROUND | Ground | single_source | SP-GND-1 | |
| POWER GROUND | Ground | single_source | SP-GND-1 | |
| MAP | Analog in | single_source | not connected | |
| CLT | Temp in | single_source | OEM-2-ECoolant temperature (ECT) | |
| MAT | Temp in | single_source | OEM-2-BIntake air temperature (IAT) | |
| TPS | Analog in | single_source | OEM-3-EThrottle position (TPS) | |
| TPS VREF (5V) | 5V / 8V ref | single_source | OEM-2-I+5V sensor supply | |
| SPAREADC | Analog in | single_source | OEM-3-JRear O2 signal | |
| OPTO+ | Digital in | single_source | OEM-2-DVehicle speed | |
| OPTO- | Digital in | single_source | OEM-1-FBrake switch | |
| VR1+ | Crank / cam | single_source | OEM-2-JCrank position (CKP) | |
| VR1- | Crank / cam | single_source | not connected | |
| O2 | O2 narrowband | single_source | OEM-2-CFront O2 signal | |
| TACHO | Tacho out | single_source | OEM-2-KTachometer output |
Mates
No mated connectors (e.g. OEM plug ↔ adapter header).
mates with