ECM/PCM Inputs and Outputs at Connector E (31P)
NOTE: Standard battery voltage is 12 V.

Terminal number | Wire color | Terminal name | Description | Signal
--- | --- | --- | --- | ---
2 *2 | GRN | SLS (SHIFT LOCK SOLENOID) | Drives shift lock solenoid | With ignition switch ON (II), in the Park position, brake pedal pressed, and accelerator released: about 0 V
2 *3 | GRN | RVS (REVERSE LOCK SOLENOID VALVE) | Drives reverse lock solenoid valve | With vehicle speed below 15 km/h (9.4 mph): battery voltage With vehicle speed above 20 km/h (12.5 mph): about 0 V
3 | BLK | LG3 (LOGIC GROUND) | Ground for ECM/PCM control circuit | Less than 1.0 V at all times
4 | BLK | SG3 (SENSOR GROUND) | Sensor ground | Less than 1.0 V at all times
7 | RED (RED/BLK) *4 | MRLY (PGM-FI MAIN RELAY) | Drives PGM-FI main relay 1 (FI MAIN) Power source for DTC memory | With ignition switch ON (II): about 0 V With ignition switch OFF: battery voltage
8 | ORN | AFSHTCR (AIR FUEL RATIO (A/F) SENSOR HEATER CONTROL RELAY) | Drives A/F sensor heater relay | With ignition switch ON (II): about 0 V
9 | BLK/YEL | IG1 (IGNITION SIGNAL) | Detects ignition signal | With ignition switch ON (II): battery voltage With ignition switch OFF: about 0 V
11 | WHT | CANH (CAN COMMUNICATION SIGNAL HIGH) | Sends communication signal | With ignition switch ON (II): pulses
12 | GRN | FANC (RADIATOR FAN CONTROL) | Drives radiator fan relay | With radiator fan running: about 0 V With radiator fan stopped: battery voltage
15 | BLU | ELD (ELECTRICAL LOAD DETECTOR) | Detects ELD signal | With ignition switch ON (II): about 0.1−4.8 V (depending on electrical load)
16 | GRY | PSPSW (POWER STEERING PRESSURE SWITCH SIGNAL) | Detects PSP switch signal | At idle with steering wheel straight ahead: about 0 V At idle with steering wheel at full lock: battery voltage
16 *5 | GRY | EPSLD (ELECTRICAL POWER STEERING LOAD DETECT) | Detects power steering load signal | At idle with steering wheel in straight ahead position: about 0 V At idle with steering wheel at full lock: battery voltage momentarily
17 | WHT | 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
18 | BRN | ACC (A/C CLUTCH RELAY) | Drives A/C clutch relay | With compressor ON: about 0 V With compressor OFF: battery voltage

*2: | A/T
*3: | M/T
*4: | RHD model
*5: | with EPS model