ECM/PCM Inputs and Outputs at ECM/PCM Connector C (◦) (44P)
CONNECTOR TERMINAL DESCRIPTION
| Terminal number | Wire color | Terminal name | Description | Signal |
|---|---|---|---|---|
| 1 | WHT | IG1ETCS (IGNITION SIGNAL ETCS) | Detects ignition signal | With ignition switch ON (II): battery voltage |
| 2 | BLK | PGMETCS (POWER GROUND ETCS) | Ground circuit for ECM/PCM | Less than 0.2 V at all times |
| 3 | YEL | ETCSM - (THROTTLE ACTUATOR - SIDE) | Ground for throttle actuator | With ignition switch ON (II) and accelerator pedal released: about 0 V |
| 4 | YEL/RED | ETCSM + (THROTTLE ACTUATOR +SIDE) | Drives throttle actuator | About 1.5 V immediately after turning ignition switch ON (II), then about 0 V |
| 5 | BRN | INJ1 (No. 1 INJECTOR) | Drives No. 1 injector | At idle: duty controlled With ignition switch ON (II): battery voltage |
| 6 | RED | INJ2 (No. 2 INJECTOR) | Drives No. 2 injector | |
| 7 | BLU | INJ3 (No. 3 INJECTOR) | Drives No. 3 injector | |
| 8 | YEL | INJ4 (No. 4 INJECTOR) | Drives No. 4 injector | |
| 9 | GRN | AFSHTC (AIR FUEL RATIO (A/F) SENSOR (SENSOR 1) HEATER CONTROL) | Drives A/F sensor (sensor 1) heater | With ignition switch ON (II): battery voltage With warmed up engine running: duty controlled |
| 10 | Not used | Not used | ||
| 11 | GRN/RED | MAP (MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR) | Detects MAP sensor signal | With ignition switch ON (II): about 3.0 V At idle: about 1.0 V (depending on engine speed) |
| 12 | BLU | VCC3 (SENSOR VOLTAGE) | Provides sensor reference voltage | With ignition switch ON (II): about 5.0 V |
| 13 | GRN | SG (SENSOR GROUND) | Sensor ground | Less than 0.2 V at all times |
| 14 | GRN/YEL | ITS (ROCKER ARM OIL CONTROL SOLENOID) | Drives rocker arm oil control solenoid | At idle: about 0 V |
| 15 | WHT | IGPLS1 (No. 1 IGNITION COIL PULSE) | Drives No. 1 ignition coil | With ignition switch ON (II): about 0 V With engine running: pulses |
| 16 | WHT/GRN | IGPLS2 (No. 2 IGNITION COIL PULSE) | Drives No. 2 ignition coil | |
| 17 | WHT/BLK | IGPLS3 (No. 3 IGNITION COIL PULSE) | Drives No. 3 ignition coil | |
| 18 | WHT/BLU | IGPLS4 (No. 4 IGNITION COIL PULSE) | Drives No. 4 ignition coil | |
| 19 | Not used | Not used | ||
| 20 | RED/BLK | TPSA (THROTTLE POSITION (TP) SENSOR A) | Detects TP sensor A signal | With ignition switch ON (II) and accelerator pedal pressed: about 3.9 V With ignition switch ON (II) and accelerator pedal released: about 0.9 V |
| 21 | RED | TPSB (THROTTLE POSITION (TP) SENSOR B) | Detects TP sensor B signal | With ignition switch ON (II) and accelerator pedal pressed: about 4.1 V With ignition switch ON (II) and accelerator pedal released: about 1.7 V |
| 22 | Not used | Not used | ||
| 23 | Not used | Not used | ||
| 24 | Not used | Not used | ||
| 25 | Not used | Not used | ||
| 26 | Not used | Not used | ||
| 27 | WHT | SHO2S (SECONDARY HEATED OXYGEN SENSOR (SECONDARY HO2S) (SENSOR 2)) | Detects secondary HO2S (sensor 2) signal | With throttle fully opened from idle and warmed up engine: about 0.8 V With throttle quickly closed: below 0.4 V |
| 28 | BLK/WHT | SO2SHTC (SECONDARY HEATED OXYGEN SENSOR(SECONDARY HO2S) (SENSOR 2) HEATER) | Drives secondary HO2S (sensor 2) heater | With ignition switch ON (II): battery voltage With warmed up engine running: duty controlled |
| 29 | RED | AFS+ (AIR FUEL RATIO (A/F) SENSOR (SENSOR 1) +SIDE) | Detects A/F sensor (sensor 1) signal | At idle: about 2.2 V |
| 30 | RED/YEL | AFS-(AIR FUEL RATIO (A/F) SENSOR (SENSOR 1) - SIDE) | Detects A/F sensor (sensor 1) signal | At idle: about 1.8 V |
| 31 | GRN | CMP (CAMSHAFT POSITION (CMP) SENSOR) | Detects CMP sensor signal | With engine running: pulses |
| 32 | BLU | CKP (CRANKSHAFT POSITION (CKP) SENSOR) | Detects CKP sensor signal | With engine running: pulses |
| 33 | BLU/BLK | VTPSW(ROCKER ARM OIL PRESSURE SWITCH) | Detects rocker arm oil pressure switch signal | At idle: about 0 V |
| 34 | Not used | Not used | ||
| 35 | Not used | Not used | ||
| 36 | BLK/RED | IG1 (IGNITION SIGNAL) | Detects ignition signal | With ignition switch ON (II): battery voltage |
| 37 | Not used | Not used | ||
| 38 | Not used | Not used | ||
| 39 | YEL/RED | VCC1 (SENSOR VOLTAGE) | Provides sensor reference voltage | With ignition switch ON (II): about 5.0 V |
| 40 | BRN/YEL | LG1 (LOGIC GROUND) | Ground circuit for ECM/PCM | Less than 0.2 V at all times |
| 41 | Not used | Not used | ||
| 42 | RED/BLU | KS (KNOCK SENSOR) | Detects knock sensor signal | With engine knocking: pulses Without engine knocking: 0 V |
| 43 | GRN/WHT | SG1 (SENSOR GROUND) | Sensor ground | Less than 0.2 V at all times |
| 44 | BRN/YEL | LG2 (LOGIC GROUND) | Ground circuit for ECM/PCM | Less than 0.2 V at all times |