ECM/PCM Inputs and Outputs at ECM/PCM Connector B (A) (49P)
CONNECTOR TERMINALS REFERENCE CHART
| Terminal number | Wire color | Terminal name | Description | Signal | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 31 | RED/BLK | VG+ (MASS AIR FLOW (MAF) SENSOR +SIDE) | Detects MAF sensor signal | At idle with warmed up engine and no electrical load: about 1.3 V | ||||||||
| 32 | RED/YEL | IAT (INTAKE AIR TEMPERATURE (IAT) SENSOR) | Detects IAT sensor signal | With ignition switch ON (II): about 0.1-4.0 V (about 1.8 V at normal operating temperature) | ||||||||
| 33 | BLK/BLU | VG- (MASS AIR FLOW (MAF) SENSOR-SIDE) | Ground for MAF sensor signal | |||||||||
| 34 | GRN/BLK | SG2 (SENSOR GROUND) | Sensor ground | Less than 0.2 V at all times | ||||||||
| 35 | GRN/YEL | VTS (VTSA)(2) (ROCKER ARM OIL CONTROL SOLENOID (A)(2)) | Drives rocker arm oil control solenoid (A)(2) | At idle: about 0 V | ||||||||
| 36(3) | WHT/RED | SHO2S (SECONDARY HEATED OXYGEN SENSOR (SECONDARY HO2S) SENSOR 2) | Detects secondary HO2S (sensor 2) signal | With throttle fully opened from idle and warmed up engine: above 0.8 V While throttle quickly closed: below 0.1 V |
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| 36(4) | WHT/RED | SHO2S (SECONDARY HEATED OXYGEN SENSOR (SECONDARY HO2S) SENSOR 2) | Detects secondary HO2S (sensor 2) signal | With throttle fully opened from idle and warmed up engine: above 0.8 V(1) While throttle quickly closed: below 0.1 V* *: between SHO2S terminal and SO2SG terminal |
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| 37(4) | WHT | SO2SG (SECONDARY HEATED OXYGEN SENSOR (SECONDARY HO2S) SENSOR 2) SENSOR GROUND) | Sensor ground for secondary HO2S (sensor 2) | With ignition switch ON (II): about 1.5 V | ||||||||
| 38 | BLK/WHT | NC (OUTPUT SHAFT (COUNTERSHAFT) SPEED SENSOR) | Detects output shaft (countershaft) speed sensor signal | With ignition switch ON (II): about 0 V or about 5.0 V While driving: about 2.5 V (pulses) |
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| 40(1) | BRN | LSB (A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE B) | Drives A/T clutch pressure control solenoid valve B | With ignition switch ON (II): current controlled | ||||||||
| 43(2) | BLU | VTP SWB (ROCKER ARM OIL PRESSURE SWITCH B) | Detects rocker arm oil pressure switch B signal | At idle: about 0 V | ||||||||
| 45 | WHT/GRN | ALTC (ALTERNATOR CONTROL) | Sends alternator control signal | With warmed up engine running: about 7.5 V (depending on electrical load) | ||||||||
| 46 | WHT/BLU | ALTL (ALTERNATOR L SIGNAL) | Detects alternator L signal | With ignition switch ON (II): about 0 V With engine running: battery voltage |
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| 47 | WHT/RED | ALTF (ALTERNATOR FR SIGNAL) | Detects alternator FR signal | With engine running: about 0.5-2.7 V (depending on electrical load) | ||||||||
| 48(1) | RED/BLK | LSA (A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE A) | Drives A/T clutch pressure control solenoid valve A | With ignition switch ON (II): current controlled | ||||||||
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