Engine/Powertrain Control Module Terminal Arrangement
ECM/PCM CONNECTOR A (32P)
NOTE:
Standard battery voltage is 12 V.
TERMINALS DESCRIPTION CHART
| Terminal number | Wire color | Terminal name | Description | Signal | ||
|---|---|---|---|---|---|---|
| 3 | BLU | 2WBS (EVAP BYPASS SOLENOID VALVE) | Drives EVAP bypass solenoid valve. | With ignition switch ON (II): battery voltage | ||
| 4 | LT GRN/WHT | VSV (EVAP CONTROL CANISTER VENT SHUT VALVE) | Drives EVAP control canister vent shut valve. | With ignition switch ON (II): battery voltage | ||
| 6 | RED/YEL | PCS (EVAP PURGE CONTROL SOLENOID VALVE) | Drives EVAP purge control solenoid valve | With engine running, engine coolant, below 154°F (68°C), battery voltage With engine running, engine coolant, above 149°F (65°C): duty controlled |
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| 8 | BLK/WHT | SO2SHTC (SECONDARY HEATED OXYGEN SENSOR HEATER CONTROL) | Drives secondary heated oxygen sensor heater | With ignition switch ON (II): battery voltage With fully warmed up engine running: duty controlled |
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| 10 | BRN | SCS (SERVICE CHECK SIGNAL) | Detects service check connector signal (the signal causing a DTC indication) | With the terminal connected: 0 V With the terminal disconnected: about 5 V or battery voltage |
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| 14(1) | GRN/BLK | D4IND (D4 INDICATOR) | Drives D4 indicator light | With D4 indicator light turned ON: 0 V With D4 indicator light turned OFF: battery voltage |
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| 16 | GRN/YEL | FLR (FUEL PUMP RELAY) | Drives fuel pump relay. | 0 V for two seconds after turning ignition switch ON (II), then battery voltage | ||
| 17 | BLK/RED | ACC (A/C CLUTCH RELAY) | Drives A/C clutch relay. | With compressor ON: 0 V With compressor OFF: battery voltage |
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| 18 | GRN/ORN | MIL (MALFUNCTION INDICATOR LIGHT) | Drives MIL | With MIL turned ON: 0 V With MIL turned OFF battery voltage |
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| 19 | BLU | NEP (ENGINE SPEED PULSE) | Outputs engine speed pulse. | With engine running: pulses | ||
| 21 | LT BLU | K-LINE | Sends and receives scan tool signal | With ignition switch ON (II): pulses | ||
| 23 | WHT/RED | SHO2S (SECONDARY HEATED OXYGEN SENSOR, SENSOR 2) | Detects secondary heated oxygen sensor (sensor 2) signal. | With throttle fully opened from idle with fully warmed up engine above 0.6 V With throttle quickly closed: below 0 4 V |
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| 24 | BLU/ORN | STS (STARTER SWITCH SIGNAL) | Detects starter switch signal. | With starter switch ON (III): battery voltage With starter switch OFF: 0 V |
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| 27 | BLU/RED | ACS (A/C SWITCH SIGNAL) | Detects A/C switch signal. | With A/C switch ON: 0 V With A/C switch OFF: about 5 V |
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| 28(1) | WHT/RED | SLU (INTERLOCK CONTROL UNIT) | Drives interlock control unit. | With ignition switch ON (II) and brake pedal depressed: battery voltage | ||
| 29 | LT GRN | PTANK (FUEL TANK PRESSURE SENSOR) | Detects fuel tank pressure sensor signal | With ignition switch ON (II) and fuel fill cap opened, about 2.5 V | ||
| 32 | GRN/WHT | BKSW (BRAKE SWITCH) | Detects brake switch signal. | With brake pedal released: 0 V With brake pedal depressed battery voltage |
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*2: M/T |
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PCM CONNECTOR B (25P)
NOTE:
Standard battery voltage is 12 V.
TERMINALS DESCRIPTION CHART
| Terminal number | Wire color | Terminal name | Description | Signal | ||||
|---|---|---|---|---|---|---|---|---|
| 1 | YEL/BLK | IGP1 (POWER SOURCE) | Power source for the ECM/PCM control circuit | With ignition switch ON (II): battery voltage With ignition switch OFF: 0 V |
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| 2 | BLK | PG1 (POWER GROUND) | Ground for the ECM/PCM control circuit | Less than 1 0 V at all times | ||||
| 3 | RED | INJ2 (NO 2 FUEL INJECTOR) | Drives No 2 fuel injector. | With engine running: duty controlled | ||||
| 4 | BLU | INJ3 (No 3 FUEL INJECTOR) | Drives No. 3 fuel injector | |||||
| 5 | YEL | INJ4 (No. 4 FUEL INJECTOR) | Drives No. 4 fuel injector. | |||||
| 6(1) | BLK/BLU | IACV P (IDLE AIR CONTROL VALVE POSITIVE SIDE) | Drives IAC valve (positive side). | With engine running: duty controlled | ||||
| 8(1) | WHT | LSA- (A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE A - SIDE) | A/T clutch pressure control solenoid valve A power supply negative electrode. | With ignition switch ON (II): duty controlled | ||||
| 9 | YEL/BLK | IGP2 (POWER SOURCE) | Power source for the ECM/PCM control circuit. | With ignition switch ON (II): battery voltage With ignition switch OFF: 0 V |
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| 10 | BLK | PG2 (POWER GROUND) | Ground for the ECM/PCM control circuit | Less than 1.0 V at all times | ||||
| 11 | BRN | INJ1 (No 1 FUEL INJECTOR) | Drives No. 1 fuel injector. | With engine running: duty controlled | ||||
| 12 | GRN/YEL | VTS (VTEC SOLENOID VALVE) | Drives VTEC solenoid valve. | With engine at low rpm: 0 V With engine at high rpm: battery voltage |
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| 13 | YEL/GRN | ICM (IGNITION CONTROL MODULE) | Sends ignition pulse. | With ignition switch ON (II): battery voltage With engine running: pulses |
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| 15(1) | ORN | IACV N (IDLE AIR CONTROL VALVE NEGATIVE SIDE) | Drives the IAC valve (negative side) | With engine running: duty controlled | ||||
| 17(1) | RED | LSA+ (A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE A + SIDE) | A/T clutch pressure control solenoid valve A power supply positive electrode | With ignition switch ON (II): duty controlled | ||||
| 20 | BRN/BLK | LG1 (LOGIC GROUND) | Ground for the ECM/PCM control circuit. | Less than 1.0 V at all times | ||||
| 21 | WHT/BLU | VBU (VOLTAGE BACK UP) | Power source for the ECM/PCM control circuit. Power source for the DTC memory |
Battery voltage at all times | ||||
| 22 | BRN/BLK | LG2 (LOGIC GROUND) | Ground for the ECM/PCM control circuit | Less than 1.0 V at all times | ||||
| 23(2) | BLK/BLU | IACV (IDLE AIR CONTROL VALVE) | Drives IAC valve. | With engine running, duty controlled | ||||
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ECM/PCM CONNECTOR C (31P)
NOTE:
Standard battery voltage is 12 V.
TERMINALS DESCRIPTION CHART
| Terminal number | Wire color | Terminal name | Description | Signal |
|---|---|---|---|---|
| 1 | BLK/WHT | PO2SHTC (PRIMARY HEATED OXYGEN SENSOR HEATER CONTROL) | Drives primary heated oxygen sensor heater. | With ignition switch ON (II): battery voltage With fully warmed up engine running: duty controlled |
| 3 | RED/BLU | KS (KNOCK SENSOR) | Detects KS signal. | With engine knocking: pulses |
| 5 | WHT/RED | ALTF (ALTERNATOR FR SIGNAL) | Detects alternator FR signal | With fully warmed up engine running. 0 V - battery voltage (depending on electrical load) |
| 7 | GRN/WHT | SG1 (SENSOR GROUND) | Ground for MAP sensor. | Less than 1 0 V at all times |
| 8 | BLU | CKPP (CKP SENSOR P SIDE) | Detects CKP sensor. | With engine running: pulses |
| 9 | WHT | CKPM (CKP SENSOR M SIDE) | Ground for CKP sensor | |
| 10*4 | BLU/BLK | VTM (VTEC PRESSURE SWITCH SIGNAL) | Detects VTEC pressure switch signal. | With engine at low engine speed 0 V With engine at high engine speed: battery voltage |
| 16 | WHT | PHO2S (PRIMARY HEATED OXYGEN SENSOR, SENSOR 1) | Detects primary heated oxygen sensor (sensor 1) signal | With throttle fully opened from idle with fully, warmed up engine: above 0.6 V With throttle quickly closed: below 0 4 V |
| 17 | RED/GRN | MAP (MANIFOLD ABSOLUTE PRESSURE SENSOR) | Detects MAP sensor signal | With ignition switch ON (II): about 3 V At idle: about 1.0 V (depending on engine speed) |
| 18 | GRN/BLK | SG2 (SENSOR GROUND) | Sensor ground | Less than 1 0 V at all times |
| 19 | YEL/RED | VCC1 (SENSOR VOLTAGE) | Power source to MAP sensor | With ignition switch ON (II): about 5 V With ignition switch OFF: 0 V |
| 20 | GRN | TDCP (TDC SENSOR P SIDE) | Detects TDC sensor. | With engine running: pulses |
| 21 | RED | TDCM (TDC SENSOR M SIDE) | Ground for TDC sensor. | |
| 22 | BLU/RED | CKFP (CKF SENSOR P SIDE) | Detects CKF sensor | With engine running: pulses |
| 23 | BLU/WHT | VSS (VEHICLE SPEED SENSOR) | Detects VSS signal. | With ignition switch ON (II) and front wheels rotating: cycles 0 V - about 5 V or battery voltage |
| 25 | RED/YEL | IAT (INTAKE AIR TEMPERATURE SENSOR) | Detects IAT sensor signal | With ignition switch ON (II) about 0.1 - 4.8 V (depending on intake air temperature) |
| 26 | RED/WHT | ECT (ENGINE COOLANT TEMPERATURE SENSOR) | Detects ECT sensor signal | With ignition switch ON (II): about 0.1 - 4.8 V (depending on engine coolant temperature) |
| 27 | RED/BLK | TPS (THROTTLE POSITION SENSOR) | Detects TP sensor signal. | With throttle fully open: about 4 8 V With throttle fully closed: about 0 5 V |
| 28 | YEL/BLU | VCC2 (SENSOR VOLTAGE) | Provides sensor voltage | With ignition switch ON (II): about 5 V With ignition switch OFF: 0 V |
| 29 | YEL | CYPP (CYP SENSOR P SIDE) | Detects CYP sensor. | With engine running: pluses |
| 30 | BLK | CYPM (CYP SENSOR M SIDE) | Ground for CYP sensor | |
| 31 | WHT/RED | CKFM (CKF SENSOR M SIDE) | Ground for CKF sensor signal | |
| *1 A/T *2 M/T |
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ECM/PCM CONNECTOR D (16P)
NOTE:
Standard battery voltage is 12 V.
TERMINALS DESCRIPTION CHART
| Terminal number | Wire color | Terminal name | Description | Signal | ||
|---|---|---|---|---|---|---|
| 1(1) | YEL | LC (LOCK-UP CONTROL SOLENOID VALVE A) | Drives look-up control solenoid valve A. | With lock-up ON: battery voltage With lock-up OFF 0 V |
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| 2(1) | GRN/WHT | SHB (SHIFT CONTROL SOLENOID VALVE B) | Drives shift control solenoid valve B. | In [2] position, in 1st and 2nd gear in [D4 ], [D3 ] position: Battery voltage | ||
| 3(1) | GRN/BLK | LC B (LOCK-UP CONTROL SOLENOID VALVE B) | Drives lock-up control solenoid valve B. | When full lock-up: Battery voltage With half lock-up: Pulsing signal |
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| 5(1) | BLK/YEL | VBSOL (BATTERY VOLTAGE FOR SOLENOID VALVE) | Power source of solenoid valve. | With ignition switch ON (II): battery voltage With ignition switch OFF: 0 V |
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| 6(1) | WHT | ATPR (AT GEAR POSITION SWITCH) | Detects A/T gear position switch signal | In R position: 0 V In any other position. Approx. 5 V |
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| 7(1) | BLU/YEL | SHA (SHIFT CONTROL SOLENOID VALVE A) | Drives shift control solenoid valve A | In [2] position, in 2nd and 3rd gear in [D4
], [D3
] position: Battery voltage In 1st gear in [D4 ], [D3 ] position, in 4th gear in [D4 ] position: 0 V |
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| 8(1) | PNK | ATPD3 (AT GEAR POSITION SWITCH) | Detects A/T gear position switch signal | In D3 position: 0 V In any other position: Approx. 5 V |
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| 9(1) | YEL | ATPD4 (AT GEAR POSITION SWITCH) | Detects A/T gear position switch signal. | In D4 position: 0 V In any other position: Approx. 5 V |
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| 10(1) | BLU | NC (COUNTERSHAFT SPEED SENSOR) | Detects countershaft speed sensor signals. | Depending on vehicle speed: Pulsing signal When vehicle is stopped: 0 V |
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| 11(1) | RED | NM (MAINSHAFT SPEED SENSOR) | Detects mainshaft speed sensor signals. | With engine running: pulses | ||
| 12(1) | WHT | NMSG (MAINSHAFT SPEED SENSOR GROUND) | Ground for mainshaft speed sensor. | |||
| 13(1) | LT GRN | ATPNP (AT GEAR POSITION SWITCH) | Detects A/T gear position switch signal | In park or neutral: 0 V In any other position: Approx. 5 V |
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| 14(1) | BLU | ATP2 (AT GEAR POSITION SWITCH) | Detects A/T gear position switch signal. | In 2nd position: 0 V In any other position: Approx. 5 V |
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| 16(1) | GRN | NCSG (COUNTERSHAFT SPEED SENSOR GROUND) | Ground for countershaft speed sensor. | |||
*2: M/T |
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