PCM Inputs and Outputs at Connector A (SQUARE) (44P)
NOTE:
Standard battery voltage is 12 V.
TERMINALS DESCRIPTION CHART
| Terminal number | Wire color | Terminal name | Description | Signal |
|---|---|---|---|---|
| 1 | RED | CANL (CAN COMMUNICATION SIGNAL LOW) | Sends communication signal | With ignition switch ON (II): pulse |
| 2 | WHT/RED | SLS (SHIFT LOCK SOLENOID) | Drives shift lock solenoid | With ignition switch ON (II), in the P position, brake pedal pressed, and accelerator released: Battery voltage |
| 4 | BLU | FANL (RADIATOR FAN CONTROL) | Drives condenser fan relay | With condenser fan running: about 0 V With condenser fan stopped: battery voltage |
| 5 | GRN | FANH (RADIATOR FAN CONTROL) | Drives radiator fan relay | With radiator fan running: about 0 V With radiator fan stopped: battery voltage |
| 6 | BLK/WHT | MRLY (PGM-FI MAIN RELAY 1) | Drives PGM-FI main relay 1 (FI MAIN) power source for the DLC memory) | With ignition switch ON (II): 0 V With ignition switch OFF: battery voltage |
| 7 | GRY | BKSWNC (BRAKE PEDAL POSITION SWITCH) | Detects brake pedal position switch signal | With ignition switch ON (II) and brake pedal released: battery voltage With ignition switch ON (II) and brake pedal pressed: about 0 V |
| 8 | WHT/BLK | BKSW (BRAKE PEDAL POSITION SWITCH) | Detects brake pedal position switch signal | With brake pedal released: about 0 V With brake pedal pressed: battery voltage |
| 9 | GRN/YEL | SG7 (SENSOR GROUND) | Sensor ground | Less than 1.0 V at all times |
| 10 | LT GRN/WHT | VSV (EVAPORATIVE EMISSION (EVAP) CANISTER VENT SHUT VALVE | Drives EVAP canister vent shut valve | With ignition switch ON (II): battery voltage |
| 11 | GRN/YEL | IMOFPR (IMMOBILIZER FUEL PUMP RELAY) | Drives PGM-FI main relay 2 (FUEL PUMP) | 0 V for 2 seconds after turning ignition switch ON (II), then battery voltage |
| 12 | BLU/BLK | ATPP (TRANSMISSION RANGE SWITCH PARK) | Detects transmission range switch P position signal | In P position: 0 V In any other position: battery voltage |
| 14 | RED | ACC (A/C CLUTCH RELAY) | Drives A/C clutch relay | With compressor ON: about 0 V With compressor OFF: battery voltage |
| 17 | ORN/BLK | APSA (ACCELERATOR PEDAL POSITION (APP) SENSOR A) | Detects APP sensor A signal | With ignition switch ON (II) and accelerator pedal pressed: about 4.7 V With ignition switch ON (II) and accelerator pedal released: about 1.0 V |
| 18 | YEL | APSB (ACCELERATOR PEDAL POSITION (APP) SENSOR B) | Detects APP sensor B signal | With ignition switch ON (II) and accelerator pedal pressed: about 2.3 V With ignition switch ON (II) and accelerator pedal released: about 0.5 V |
| 19 | YEL/BLU | VCC7 (SENSOR VOLTAGE) | Provides sensor voltage | With ignition switch ON (II): about 5 V |
| 20 | BRN/RED | ETCSRLY (ELECTRONIC THROTTLE CONTROL SYSTEM (ETCS) CONTROL RELAY) | Drives electronic throttle control system (ETCS) control relay | With ignition switch ON (II): 0 V |
| 21 | ORN | AFSHTCR (AIR FUEL RATIO (A/F) SENSOR HEATER CONTROL RELAY) | Drives A/F sensor relay | With ignition switch ON (II): 0 V |
| 22 | BRN/YEL | LG3 (LOGIC GROUND) | Ground circuit for the PCM | Less than 1.0 V at all times |
| 23 | GRN/RED | ELD (ELECTRICAL LOAD DETECTOR (ELD)) | Detects ELD signal | With ignition switch ON (II): about 0.1-4.8 V (depending on electrical load) |
| 24 | GRN | VCC3 (SENSOR VOLTAGE) | Provides sensor voltage | Ignition switch ON (II): about 5 V |
| 25 | WHT | VCC4 (SENSOR VOLTAGE) | Provides sensor voltage | Ignition switch ON (II): about 5 V |
| 28 | BLU | NEP (ENGINE SPEED PULSE) | Outputs engine speed signal | With engine running: pulse |
| 29 | BLU/WHT | VSSOUT (VEHICLE SPEED SIGNAL OUTPUT) | Sends vehicle speed sensor signal | Depending on vehicle speed: pulses |
| 31 | BRN | SCS (SERVICE CHECK SIGNAL) | Detects service check signal | With the SCS shorted with the HDS: about 0 V With the SCS opened: about 5 V |
| 33 | LT GRN | FTP (FUEL TANK PRESSURE (FTP) SENSOR) | Detects FTP sensor signal | With ignition switch ON (II) and fuel fill cap open: about 2.5 V |
| 34 | BLK | SG3 (SENSOR GROUND) | Sensor ground | Less than 1.0 V at all times |
| 35 | RED/YEL | SG4 (SENSOR GROUND) | Sensor ground | Less than 1.0 V at all times |
| 36 | WHT | CANH (CAN COMMUNICATION SIGNAL HIGH) | Sends communication signal | With ignition switch ON (II): pulses |
| 38 | GRN/WHT | PSPSW (POWER STEERING PRESSURE SWITCH SIGNAL) | Detects PSP switch signal | At idle steering wheel in straight ahead position: about 0 V At idle with steering wheel at full lock: battery voltage |
| 41 | BLU/RED | ACS (A/C SWITCH) | Detects A/C switch signal | A/C switch ON: about 0 V A/C switch OFF: battery voltage |
| 42 | RED/WHT | WEN (WRITE ENABLE SIGNAL) | Detects write enable signal | With ignition switch ON (II): about 0 V |
| 43 | GRY | K-LINE | Sends and receives HDS signal | With ignition switch ON (II): about 2.5 V |
| 44 | RED/GRN | IMOCD (IMMOBILIZER CODE) | Detects immobilizer signal |