ECM/PCM Inputs and Outputs at ECM/PCM Connector C (◦) (49P)
TERMINAL DESCRIPTION CHART
| Terminal number | Wire color | Terminal name | Description | Signal | ||
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| 1 | BLK | PGMETCS (POWER GROUND ETCS) | Ground circuit for ECM/PCM | Less than 0.2 V at all times | ||
| 2 | BLU | ETCSM+ (THROTTLE ACTUATOR +SIDE) | Drives throttle actuator | With ignition switch ON (II)/vehicle in ON mode: about 0 V | ||
| 3 | GRN | ETCSM - (THROTTLE ACTUATOR-SIDE) | Ground for throttle actuator | With ignition switch ON (II)/vehicle in ON mode: about 0 V | ||
| 4 | YEL/GRN | IG1 ETCS (IGNITION SIGNAL ETCS) | Detects ignition signal | With ignition switch ON (II)/vehicle in ON mode: battery voltage | ||
| 5 | BLK/WHT | SO2SHTCB1 (REAR SECONDARY HEATED OXYGEN SENSOR (REAR SECONDARY HO2S) (BANK 1, SENSOR 2) HEATER CONTROL) | Drives rear secondary HO2S (Bank 1, sensor 2) heater | With ignition switch ON (II)/vehicle in ON mode: battery voltage With warmed up engine running: duty controlled |
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| 6 | BLK/WHT | AFSHTCB1 (REAR AIR FUEL RATIO (REAR A/F) SENSOR (BANK 1, SENSOR 1) HEATER CONTROL) | Drives rear A/F sensor (Bank 1, sensor 1) heater | With ignition switch ON (II)/vehicle in ON mode: battery voltage With warmed up engine running: about 0 V or duty controlled |
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| 7 | GRN/RED | SO2SHTCB2 (FRONT SECONDARY HEATED OXYGEN SENSOR (SECONDARY HO2S) (BANK 2, SENSOR 2) HEATER CONTROL) | Drives front secondary HO2S (Bank 2, sensor 2) heater | With ignition switch ON (II)/vehicle in ON mode: battery voltage With warmed up engine running: duty controlled |
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| 8 | GRN/WHT | AFSHTCB2 (FRONT AIR FUEL RATIO (FRONT A/F) SENSOR (BANK 2, SENSOR 1) HEATER CONTROL) | Drives front A/F sensor (Bank 2, sensor 1) heater | With ignition switch ON (II)/vehicle in ON mode: battery voltage With warmed up engine running: about 0 V or duty controlled |
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| 9(1) | GRN/RED | SHD (SHIFT SOLENOID VALVE D) | Drives shift solenoid valve D | With engine running in N, in D and S during no lock-up condition: about 0 V With engine running in P and R, and in D and S during lock-up condition: battery voltage |
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| 10 | BLU/RED | 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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| 11 | YEL/BLU | VCC6 (SENSOR VOLTAGE) | Provides sensor reference voltage | With ignition switch ON (II)/vehicle in ON mode: about 5.0 V | ||
| 12 | YEL/BLU | VCC2 (SENSOR VOLTAGE) | Provides sensor reference voltage | With ignition switch ON (II)/vehicle in ON mode: about 5.0 V | ||
| 15 | GRN/RED | SG6 (SENSOR GROUND) | Sensor ground | Less than 0.2 V at all times | ||
| 16 | GRN/YEL | SG2 (SENSOR GROUND) | Sensor ground | Less than 0.2 V at all times | ||
| 17(1) | YEL/GRN | ATPD (TRANSMISSION RANGE SWITCH D) | Detects transmission range switch D position signal | In D: about 0 V In any position other than D: about 5.0 V |
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| 18(1) | BLU/YEL | ATPFWD (TRANSMISSION RANGE SWITCH FWD) | Detects transmission range switch FWD position signal | In D and S: about 0 V In any position other than D and S: about 5.0 V |
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| 19(1) | RED/WHT | ATPRVS (TRANSMISSION RANGE SWITCH RVS) | Detects transmission range switch RVS position signal | In P, R, and N: about 0 V In any position other than P, R, and N: about 5.0 V | ||
| 20(1) | BLU/YEL | SHA (SHIFT SOLENOID VALVE A) | Drives shift solenoid valve A | With engine running in D, S (in 2nd and 3rd gears) and R: battery voltage With engine running in P, N, and D (in 1st, 4th, and 5th gears), and S (in 1st and 4th gears): about 0 V |
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| 21(1) | RED | LSA (A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE A) | Drives A/T clutch pressure control solenoid valve A | With ignition switch ON (II)/vehicle in ON mode: current controlled | ||
| 24 | RED/YEL | IAT (INTAKE AIR TEMPERATURE (IAT) SENSOR) | Detects IAT sensor signal | With ignition switch ON (II)/vehicle in ON mode: about 0.1-4.8 V (depending on intake air temperature) | ||
| 25(1) | WHT | ATPR (TRANSMISSION RANGE SWITCH R) | Detects transmission range switch R position signal | In R: about 0 V In any position other than R: more than 5.0 V |
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| 26(1) | RED/BLK | ATPN (TRANSMISSION RANGE SWITCH N) | Detects transmission range switch N position signal | In N: about 0 V In any position other than N: battery voltage |
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| 27(1) | BLU/BLK | OP2SW (TRANSMISSION FLUID PRESSURE SWITCH A (2ND CLUTCH) | Detects transmission fluid pressure switch A (2nd clutch) | With ignition switch ON (II)/vehicle in ON mode:
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| 28(1) | GRN/WHT | SHB (SHIFT SOLENOID VALVE B) | Drives shift solenoid valve B | With engine running in P, R, N, D (in 1st, 2nd, and 5th gears), and S (1st and 2nd gears): battery voltage With engine running in D and S (in 3rd and 4th gears): about 0 V |
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| 32 | RED/WHT | ECT1 (ENGINE COOLANT TEMPERATURE SENSOR (ECT) SENSOR 1) | Detects ECT sensor 1 signal | With ignition switch ON (II)/vehicle in ON mode: about 0.1-4.8 V (depending on engine coolant temperature) | ||
| 33(1) | BLU/YEL | TATF (ATF TEMPERATURE SENSOR) | Detects ATF temperature signal | With ignition switch ON (II)/vehicle in ON mode: about 0.2-4.0 V (about 1.8 V at operating temperature, depending on ATF temperature) | ||
| 34 | 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) | ||
| 37(1) | BLU/YEL | OP4SW (4TH CLUTCH TRANSMISSION FLUID PRESSURE SWITCH) | Detects 4th clutch transmission fluid pressure switch | With ignition switch ON (II)/vehicle in ON mode:
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| 38(1) | BLU/WHT | OP3SW (TRANSMISSION FLUID PRESSURE SWITCH B (3RD CLUTCH)) | Detects transmission fluid pressure switch B (3rd clutch) | With ignition switch ON (II)/vehicle in ON mode:
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| 39(1) | GRN | SHC (SHIFT SOLENOID VALVE C) | Drives shift solenoid valve C | With engine running in D and S (in 1st, 3rd, and 5th gears): battery voltage With engine running in P, R, N, D, and S (in 2nd and 4th gears): about 0 V |
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| 40 | RED/YEL | PCS (EVAPORATIVE EMISSION (EVAP) 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°F (60°C): duty controlled |
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| 41 | BRN/YEL | LG1 (LOGIC GROUND) | Ground circuit for ECM/PCM | Less than 0.2 V at all times | ||
| 42 | WHT/BLU | ALTL (ALTERNATOR L SIGNAL) | Detects alternator L signal | With ignition switch ON (II)/vehicle in ON mode: about 0 V With engine running: battery voltage |
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| 43 | WHT/GRN | ALTC (ALTERNATOR CONTROL) | Sends alternator control signal | With warmed up engine running: about 7.5 V (depending on electrical load) | ||
| 44 | WHT/RED | ALTF (ALTERNATOR FR SIGNAL) | Detects alternator FR signal | With engine running: about 0-5.0 V (depending on electrical load) | ||
| 45 | BLU/YEL | OPSW (OIL PRESSURE SWITCH) | Detects engine oil pressure signal | With ignition switch ON (II)/vehicle in ON mode: battery voltage With engine running: about 0 V |
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| 46(1) | RED | ATPS (TRANSMISSION RANGE SWITCH S) | Detects transmission switch S position signal | In S: about 0 V In any position other than S: about 5.0 V |
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| 47 | RED/BLU | KS (KNOCK SENSOR) | Detects knock sensor signal | With engine knocking: pulses | ||
| 48 | WHT/BLU | IMT+ (INTAKE MANIFOLD TUNING (IMT) ACTUATOR +SIDE) | Drives IMT actuator | With ignition switch ON (II)/vehicle in ON mode: about 0 V | ||
| 49 | WHT/RED | IMT - (INTAKE MANIFOLD TUNING (IMT) ACTUATOR-SIDE) | Drives IMT actuator | With ignition switch ON (II)/vehicle in ON mode: about 0 V | ||
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