ECM/PCM Inputs and Outputs at Connector B (24P)
NOTE:
Standard battery voltage is about 12 V.
BATTERY VOLTAGE SPECIFICATION
| Terminal number | Wire color | Terminal name | Description | Signal | ||
|---|---|---|---|---|---|---|
| 2 | YEL | INJ4 (No. 4 INJECTOR) | Drives No. 4 injector | At idle: duty controlled With ignition switch ON (II): battery voltage |
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| 3 | BLU | INJ3 (No. 3 INJECTOR) | Drives No. 3 injector | |||
| 4 | RED | INJ2 (No. 2 INJECTOR) | Drives No. 2 injector | |||
| 5 | BRN | INJ1 (No. 1 INJECTOR) | Drives No. 1 injector | |||
| 6 | GRN/YEL | VTS (ROCKER ARM OIL CONTROL SOLENOID) | Drives rocker arm oil control solenoid | At idle: about 0 V | ||
| 8 | RED/WHT | ECT1 (ENGINE COOLANT TEMPERATURE SENSOR 1) | Detects ECT sensor 1 signal | With ignition switch ON (II): about 0.1 -4.8 V (depending on engine coolant temperature) With fully warmed up engine: about 0.5-0.7 V |
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| 10 | WHT/BLU | ALTL (ALTERNATOR L SIGNAL) | Detects alternator signal | With ignition switch ON (II): about 0 V With engine running: battery voltage |
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| 11 | BLU/BLK | VTPSW (ROCKER ARM OIL PRESSURE SWITCH) | Detects rocker arm oil pressure switch signal | With engine at low engine speed: about 0 V With engine at high engine speed: battery voltage |
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| 12 | WHT/BLK | EGRP (EXHAUST GAS RECIRCULATION (EGR) VALVE POSITION SENSOR) | Detects EGR valve position sensor signal | With engine running: about 1.2-3.0 V (depending on EGR valve lift) | ||
| 13 | WHT/RED | ALTF (ALTERNATOR FR SIGNAL) | Detects alternator FR signal | With engine running: about 0-5.0 V (depending on electrical load) | ||
| 16 | PNK | EGR (EXHAUST GAS RECIRCULATION (EGR) VALVE) | Drives EGR valve | With EGR operating: duty controlled With EGR not operating: about 0 V |
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| 17 | 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) | ||
| 18(1) | WHT/GRN | ALTC (ALTERNATOR CONTROL) | Sends alternator control signal | With engine running and fully warmed up: about 8.0 V | ||
| 21 | RED/YEL | PCS (EVAPORATIVE EMISSION CANISTER PURGE VALVE) | Drives EVAP canister purge valve | With engine running, engine coolant below 140°F (60°C): battery voltage With engine running, engine coolant above 140 V (60°C): duty controlled |
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