## Fuel and Emissions Systems

#### System Descriptions (cont'd)

11-323

ECM/PCM Inputs and Outputs at Connector B (24P)

Wire side of female terminals

NOTE: Standard battery voltage is 12 V.

Terminal number | Wire colour | Terminal name | Description | Signal
2 | YEL | INJ4 (No. 4 INJECTOR) | Drives No. 4 injector | With ignition switch ON (II): battery voltage At idle: duty controlled
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 | FANC (RADIATOR FAN CONTROL) | Drives radiator fan relay | With radiator fan running: about 0 V With radiator fan stopped: battery voltage
7*2 | RED/BLK | LSA + (A/T PRESSURE CONTROL SOLENOID VALVE A + SIDE | Drives A/T pressure control solenoid valve A | With the ignition switch ON (II): duty controlled
8 | RED/WHT | ECT (ENGINE COOLANT TEMPERATURE (ECT) SENSOR) | Detects ECT sensor signal | With the ignition switch ON (II): about 0.1-4.8 V (depending on engine coolant temperature)
9*1 | BLU/BLK | VTPSW (VTEC OIL PRESSURE SWITCH) | Detects VTEC oil pressure switch signal | At idle: about 0 V
10 | WHT/BLU | ALTL (ALTERNATOR L SIGNAL) | Detects alternator L signal | With ignition switch ON (II): about 0 V With engine running: battery voltage
13 | WHT/RED | ALTF (ALTERNATOR FR SIGNAL) | Detects alternator FR signal | With engine running: 0 V-5 V (depending on electrical load)
14 | BLU/RED | EGR (EXHAUST GAS RECIRCULATION (EGR) VALVE) | Drives EGR valve | With EGR operating: duty controlled With EGR not operating: about 0 V
15*1 | GRN/YEL | VTS (VTEC SOLENOID VALVE) | Drives VTEC solenoid valve | At idle: about 0 V
16*2 | BLK/RED | LSB + (A/T PRESSURE CONTROL SOLENOID VALVE B + SIDE | Drives A/T pressure control solenoid valve B | With the ignition switch ON (II): duty controlled
17 | RED/YEL | IAT (INTAKE AIR TEMPERATURE (IAT) SENSOR) | Detects IAT sensor signal | With ignition switch ON (II): about 0.1 V-4.8 V (depending on intake air temperature)
21 | YEL/BLU | PCS (EVAPORATIVE EMISSION (EVAP) CANISTER PURGE VALVE) | Drives EVAP canister purge valve | With engine running, engine coolant below 70°C (158°F): battery voltage With engine running, engine coolant above 70°C (158°F): duty controlled

*1: D16W7, D16V1 engines

*2: A/T