## Fuel and Emissions Systems

#### System Descriptions (cont'd)

11-180

ECM/PCM Inputs and Outputs at Connector E (31P)

Wire side of female terminals

NOTE: Standard battery voltage is 12 V.

Terminal number | Wire colour | Terminal name | Description | Signal
1*13 | GRN/YEL | IMO FPR (IMMOBILIZER FUEL PUMP RELAY) | Drives PGM-FI main relay 2 | 0 V for 2 seconds after turning ignition switch ON (II), then battery voltage
2*10 | WHT/RED | SHO2S (SECONDARY HEATED OXYGEN SENSOR (SECONDARY HO2S), SENSOR 2) | Detects secondary HO2S (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
3 | BRN/YEL | LG3 (LOGIC GROUND) | Ground for the ECM/PCM control circuit | Less than 1.0 V at all times
4 | PNK | SG3 (SENSOR GROUND) | Sensor ground | Less than 1.0 V at all times
5 | YEL/BLU | VCC3 (SENSOR VOLTAGE) | Provides sensor voltage | With ignition switch ON (II): about 5 V With ignition switch OFF: about 0 V
6*10 | BLK/WHT | SO2SHTC (SECONDARY HEATED OXYGEN SENSOR (SECONDARY HO2S) HEATER CONTROL) | Drives secondary HO2S heater | With ignition switch ON (II): battery voltage With fully warmed up engine running: duty controlled
7 | RED/YEL | MRLY (PGM-FI MAIN RELAY) | Drives PGM-FI main relay 1 Power source for the DTC memory | With ignition switch ON (II): about 0 V With ignition switch OFF: battery voltage
9 | YEL/BLK | IG1 (IGNITION SIGNAL) | Detects ignition signal | With ignition switch ON (II): battery voltage With ignition switch OFF: about 0 V
10*19 | GRN/YEL | FPR (FUEL PUMP RELAY) | Drives PGM-FI main relay 2 | 0 V for 2 seconds after turning ignition switch ON (II), then battery voltage
12*4 | BLU/ORN | CCS (CRUISE CONTROL SIGNAL) | Detects cruise control signal | With ignition switch ON (II): pulse
15*5 | GRN/RED | ELD (ELECTRICAL LOAD DETECTOR (ELD)) | Detects ELD signal | With ignition switch ON (II): about 0.1-4.8 V (depending on electrical load)
15*2 | ORN | IMA (IDLE MIXTURE ADJUSTER (IMA)) | Detects IMA signal | With ignition switch ON (II): about 0.5-4.5 V (depending on idle mixture)

*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