ECM/PCM Inputs and Outputs at Connector A (31P)
NOTE:
Standard battery voltage is about 12 V.
ECM/PCM CONNECTOR A REFERENCE TABLE
| Terminal number | Wire color | Terminal name | Description | Signal |
|---|---|---|---|---|
| 1 | WHT | KS (KNOCK SENSOR) | Detects knock sensor signal | With engine knocking: pulses |
| 2 | YEL/BLK | IGP2 (POWER SOURCE) | Power source for ECM/PCM circuit | With ignition switch ON (II): battery voltage With ignition switch OFF: about 0 V |
| 3 | YEL/BLK | IGP1 (POWER SOURCE) | Power source for ECM/PCM circuit | With ignition switch ON (II): battery voltage With ignition switch OFF: about 0 V |
| 4 | BLK | PG2 (POWER GROUND) | Ground circuit for ECM/PCM | Less than 1.0 V at all times |
| 5 | BLK | PG1 (POWER GROUND) | Ground circuit for ECM/PCM | Less than 1.0 V at all times |
| 6 | GRN | CMPB (CAMSHAFT POSITION SENSOR B) | Detects CMP sensor B signal | With engine running: pulses With ignition switch ON (II): about 5.0 V |
| 7 | YEL | CKP (CRANKSHAFT POSITION SENSOR) | Detects CKP sensor signal | With engine running: pulses With ignition switch ON (II): about 5.0 V |
| 8 | BRN/YEL | LG2 (LOGIC GROUND) | Ground circuit for ECM/PCM | Less than 1.0 V at all times |
| 9 | BRN/YEL | LG1 (LOGIC GROUND) | Ground circuit for ECM/PCM | Less than 1.0 V at all times |
| 10 | BLK/WHT | AFSHTC (AIR FUEL RATIO (A/F) SENSOR HEATER CONTROL) | Drives A/F sensor heater | With ignition switch ON (II): battery voltage With fully warmed up engine running: about 0 V |
| 13 | BRN | IGPLS4 (No. 4 IGNITION COIL PULSE) | Drives No. 4 ignition coil | With ignition switch ON (II): about 0 V With engine running: pulses |
| 14 | WHT/BLU | IGPLS3 (No. 3 IGNITION COIL PULSE) | Drives No. 3 ignition coil | |
| 15 | BLU/RED | IGPLS2 (No. 2 IGNITION COIL PULSE) | Drives No. 2 ignition coil | |
| 16 | YEL/GRN | IGPLS1 (No. 1 IGNITION COIL PULSE) | Drives No. 1 ignition coil | |
| 18 | BLU | NC (COUNTERSHAFT SPEED SENSOR) | Detects output shaft (countershaft) speed sensor signal | With ignition switch ON (II): about 0 V or about 5.0 V While driving: about 2.5 V |
| 19 | BLU/WHT | CMPA (CAMSHAFT POSITION SENSOR A) | Detects CMP sensor A signal | With engine running: pulses With ignition switch ON (II): about 5.0 V |
NOTE:
Standard battery voltage is about 12 V.
ECM/PCM CONNECTOR A REFERENCE TABLE
| Terminal number | Wire color | Terminal name | Description | Signal |
|---|---|---|---|---|
| 20 | YEL/BLU | VCC2 (SENSOR VOLTAGE) | Provides sensor voltage | With ignition switch ON (II): about 5.0 V With ignition switch OFF: about 0 V |
| 21 | YEL/RED | VCC1 (SENSOR VOLTAGE) | Provides sensor voltage | With ignition switch ON (II): about 5.0 V With ignition switch OFF: about 0 V |
| 23 | GRN/BLK | SG2 (SENSOR GROUND) | Sensor ground | Less than 1.0 Vat all times |
| 24 | GRN/WHT | SG1 (SENSOR GROUND) | Sensor ground | Less than 1.0 V at all times |
| 25 | RED/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 0.2 V |
| 26 | RED/BLU | APSA (ACCELERATOR PEDAL POSITION (APP) SENSOR A) | Detects APP sensor A signal | With ignition switch ON (II) and accelerator pedal pressed: about 4.5 V With ignition switch ON (II) and accelerator pedal released: about 0.5 V |
| 28 | BLU | AFS- (AIR FUEL RATIO (A/F) SENSOR, SENSOR 1-SIDE) | Detects A/F sensor (sensor 1) signal | - |
| 30 | GRN/RED | MAP (MANIFOLD ABSOLUTE PRESSURE SENSOR) | Detects MAP sensor signal | With ignition switch ON (II): about 3.0 V At idle: about 1.0 V (depending on engine speed) |
| 31 | RED | AFS+ (AIR FUEL RATIO (A/F) SENSOR, SENSOR 1 +SIDE) | Detects A/F sensor (sensor 1) signal | - |