## Fuel and Emissions Systems

#### System Descriptions (cont'd)

11-177

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
1*7 | RED | VTS 2 (VTEC SOLENOID VALVE 2) | Drives VTEC solenoid valve 2 | At idle: about 0 V
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*18 | 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
7*16 | GRN/WHT | HLCLS + (CVT PULLEY PRESSURE CONTROL VALVE + SIDE)) | Drives CVT pulley pressure control valve | With ignition switch ON (II): pulsing signal
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)
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*3 | BLU/RED | EGR (EXHAUST GAS RECIRCULATION (EGR) VALVE) | Drives EGR valve | With EGR operating: duty controlled With EGR not operating: about 0 V
15*6 | GRN/YEL | VTS (VTS 1) (VTEC SOLENOID VALVE (1)) | Drives VTEC solenoid valve (1) | At idle: about 0 V
16*18 | 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
16*16 | YEL/GRN | SCLS + (CVT START CLUTCH PRESSURE CONTROL VALVE + SIDE) | Drives CVT start clutch pressure control valve | With ignition switch ON (II): pulsing signal
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)
18*5 | WHT/GRN | ALTC (ALTERNATOR CONTROL) | Sends alternator control signal | With engine running: about 0 - 5 V (depending on electrical load)
21*14 | 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
24*16 | BLU/WHT | SHLS + (CVT SPEED CHANGE CONTROL VALVE + SIDE) | Drives CVT speed change control valve | With ignition switch ON (II): duty controlled

*1: with TWC model (except KV model) *2: without TWC model *3: D15Y4, D17A2 (KU, KQ, KZ, FO models) engines *4: with cruise control *5: D15Y4, D17A2 (KU model) engines

*6: D15Y4, D16W8, D16W9, D17A2, D17A5, D17Z3, D17Z4 engines

*7: D16W8, D16W9 engines

*8: except D15Y2, D15Y3, D15Y5, D15Y6 engines

*9: D15Y6 engine

*10: D15Y4, D17A2 (KU, KQ, KZ, FO models), D17Z1 (KQ model) engines

*11:KU model

*12 except KU model

*13: D15Y6, D15Y3 (KY model with immobiliser, KN model), D15Y5, D15Y4, D17Z1 (KQ, KZ models), D17A1 (KK model), D17A2 (except MA model), D17A5 (KY model with immobiliser, KN model) engines

*14: except D15Y3 (PA, KW, KT, KN models), D16W9 (PA model), D17A5 (KN model) engines

*15: A/T and M/T

*16: CVT

*17: A/T and CVT

*18: A/T

*19:except D15Y6, D15Y3 (KY model with immobiliser, KN model), D15Y5, D15Y4, D17Z1 (KQ, KZ models), D17A1 (KK model), D17A2 (except MA model), D17A5 (KY model with immobiliser, KN model) engine