ECM/PCM Inputs and Outputs at Connector A (31P)
NOTE:
Standard battery voltage is about 12 V.
TERMINALS REFERENCE CHART
| Terminal number | Wire color | Terminal name | Description | Signal |
|---|---|---|---|---|
| 1 | BLK | PG2 (POWER GROUND) | Ground circuit for ECM/PCM circuit | Less than 1.0 V at all times |
| 2 | BLK | PG1 (POWER GROUND) | Ground circuit for ECM/PCM circuit | Less than 1.0 V at all times |
| 3 | BRN/YEL | LG1 (LOGIC GROUND) | Ground circuit for ECM/PCM circuit | Less than 1.0 Vat all times |
| 4 | YEL/BLK | IGP (POWER SOURCE) | Power source for ECM/PCM circuit | With ignition switch ON (II): battery voltage With ignition switch OFF: about 0 V |
| 5 | RED/YEL | IAT (INTAKE AIR TEMPERATURE (IAT) SENSOR) | Detects IAT sensor signal | With ignition switch ON (II): about 0.1 - 4.8 V (depending on intake air temperature) |
| 6 | GRN/WHT | AFS HTCB2 (AIR FUEL RATIO (A/F) SENSOR HEATER CONTROL BANK 2) | Drives front A/F sensor heater (Bank 2, sensor 1) | With ignition switch ON (II): battery voltage With fully warmed up engine running: about 0 V or pulses |
| 7 | BLK/WHT | AFS HTCB1 (AIR FUEL RATIO (A/F) SENSOR HEATER CONTROL BANK1) | Drives rear A/F sensor heater (Bank 1, sensor 1) | With ignition switch ON (II): battery voltage With fully warmed up engine running: about 0 V or pulses |
| 8 | GRN/RED | SO2SHTCB2 (SECONDARY HEATED OXYGEN SENSOR (SECONDARY HO2S) HEATER CONTROL BANK 2) | Drives front secondary HO2S heater (Bank 2, sensor 2) | With ignition switch ON (II): battery voltage With fully warmed up engine running: duty controlled |
| 9 | BLK/WHT | SO2SHTCB1 (SECONDARY HEATED OXYGEN SENSOR (SECONDARY HO2S) HEATER CONTROL BANK1) | Drives rear secondary HO2S heater (Bank 1, sensor 2) | With ignition switch ON (II): battery voltage With fully warmed up engine running: duty controlled |
| 10 | BLK/YEL | VBSOL (POWER SOURCE FOR SOLENOID VALVES) | Power source for solenoid | With ignition switch ON (II): battery voltage valves With ignition switch OFF: about 0 V |
| 11 | WHT/BLU | ALTL (ALTERNATOR L SIGNAL) | Detects alternator L signal | With ignition switch ON (II): about 0 V With engine running: battery voltage |
| 12 | WHT/RED | ALTF (ALTERNATOR FR SIGNAL) | Detects alternator FR signal | With engine running: about 0-5.0 V (depending on electrical load) |
| 14 | RED/WHT | ECT1 (ENGINE COOLANT TEMPERATURE (ECT) SENSOR 1) | Detects ECT sensor 1 signal | With ignition switch ON (II): about 0.1 - 4.8 V (depending on engine coolant temperature) |
NOTE:
Standard battery voltage is about 12 V.
TERMINALS REFERENCE CHART
| Terminal number | Wire color | Terminal name | Description | Signal |
|---|---|---|---|---|
| 15 | BRN/WHT | IGPLS6 (No. 6 IGNITION COIL PULSE) | Drives No. 6 ignition coil | With ignition switch ON (II): about 0 V With engine running: pulses |
| 16 | BLK/RED | IGPLS5 (No. 5 IGNITION COIL PULSE) | Drives No. 5 ignition coil | |
| 17 | BRN | IGPLS4 (No. 4 IGNITION COIL PULSE) | Drives No. 4 ignition coil | |
| 18 | WHT/BLU | IGPLS3 (No. 3 IGNITION COIL PULSE) | Drives No. 3 ignition coil | |
| 19 | BLU/RED | IGPLS2 (No. 2 IGNITION COIL PULSE) | Drives No. 2 ignition coil | |
| 20 | YEL/GRN | IGPLS1 (No. 1 IGNITION COIL PULSE) | Drives No. 1 ignition coil | |
| 21 | BRN | INJ1 (No. 1 INJECTOR) | Drives No. 1 injector | At idle: duty controlled With ignition switch ON (II): battery voltage |
| 22 | GRN/YEL | VTS (ROCKER ARM OIL CONTROL SOLENOID) | Drives rocker arm oil control solenoid | At idle: about 0 V |
| 23 | BLU/BLK | VTP SW (ROCKER ARM OIL PRESSURE SWITCH) | Detects rocker arm oil pressure switch signal | With engine at low speed: about 0 V With engine at high speed: battery voltage |
| 24 | WHT/GRN | ALTC (ALTERNATOR CONTROL) | Sends alternator control signal | With engine running and fully warmed up: battery voltage (depending on electrical load) |
| 25 | GRN | SEFD (THROTTLE ACTUATOR CONTROL SERIAL SIGNAL) | Sends throttle actuator control serial signal | |
| 26 | BLU | SEDF (THROTTLE ACTUATOR CONTROL SERIAL SIGNAL) | Detects throttle actuator control serial signal | |
| 27 | WHT/BLU | INJ6 (No. 6 INJECTOR) | Drives No. 6 injector | At idle: duty controlled With ignition switch ON (II): battery voltage |
| 28 | BLK/RED | INJ5 (No. 5 INJECTOR) | Drives No. 5 injector | |
| 29 | YEL | INJ4 (No. 4 INJECTOR) | Drives No. 4 injector | |
| 30 | BLU | INJ3 (No. 3 INJECTOR) | Drives No. 3 injector | |
| 31 | RED | INJ2 (No. 2 INJECTOR) | Drives No. 2 injector |