PCM Inputs and Outputs at PCM Connector B (Δ ) (49P)
WARNING: This page is about a different car, the 2013 Acura MDX, 2012 Acura MDX, 2011 Acura MDX, and 2010 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.
| Terminal number | Wire color | Terminal name | Description | Signal |
|---|---|---|---|---|
| 1 | BLK | PG2 (POWER GROUND) | Ground circuit for PCM | Less than 0.2 V at all times |
| 2 | BLK/YEL | VBSOL (POWER SOURCE FOR SOLENOID VALVES) | Power source for solenoid valves | With ignition switch ON (II): battery voltage |
| 3 | YEL/BLK | IGP (POWER SOURCE) | Power source for PCM | With ignition switch ON (II): battery voltage |
| 4 | BRN | INJ1 (No. 1 INJECTOR) | Drives No. 1 injector | At idle: duty controlled With ignition switch ON (II): battery voltage |
| 5 | BLK/RED | INJ5 (No. 5 INJECTOR) | Drives No. 5 injector | |
| 6 | YEL | INJ4 (No. 4 INJECTOR) | Drives No. 4 injector | |
| 7 | BLU | INJ3 (No. 3 INJECTOR) | Drives No. 3 injector | |
| 8 | RED | INJ2 (No. 2 INJECTOR) | Drives No. 2 injector | |
| 9 | WHT/BLU | INJ6 (No. 6 INJECTOR) | Drives No. 6 injector | |
| 10 | BRN/WHT | 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 |
| 11 | BLK/RED | IGPLS5 (No. 5 IGNITION COIL PULSE) | Drives No. 5 ignition coil | With ignition switch ON (II): about 0 V With engine running: pulses |
| 12 | BRN/WHT | IGPLS6 (No. 6 IGNITION COIL PULSE) | Drives No. 6 ignition coil | |
| 13 | BLU | VSB1 (VSCELL+ BANK 1) | Detects rear A/F sensor (BANK 1, sensor 1)VS CELL signal | With warmed up engine running: about 3.4-4.8 V |
| 14 | WHT/RED | VSB2 (VS CELL 4-BANK 2) | Detects front A/F sensor (BANK 2, sensor 1)VS CELL signal | With warmed up engine running: about 3.4-4.8 V |
| 15 | RED | VCENTB1 (VIRTUAL GROUND BANK 1) | Reference voltage for rear A/F sensor (BANK 1, sensor 1) | With warmed up engine running: about 3.4-4.8 V |
| 16 | WHT | SHO2SB2 (FRONT SECONDARY HEATED OXYGEN SENSOR (FRONT SECONDARY HO2S (BANK 2, SENSOR 2))) | Detects front secondary HO2S (Bank 2, sensor 2) signal | With throttle fully opened from idle and warmed up engine: about 0.6 V With throttle quickly closed: below 0.4 V* * : (between terminals SHO2SB2 and SO2SGB2) |
| 17 | RED/BLK | TPSA (THROTTLE POSITION (TP) SENSOR A) | Detects TP sensor A signal | With throttle and accelerator pedal pressed: about 3.9 V With throttle and accelerator pedal released: about 0.9 V |
| Terminal number | Wire color | Terminal name | Description | Signal |
|---|---|---|---|---|
| 18 | BLU | VCC5 (SENSOR VOLTAGE) | Provides sensor reference voltage | With ignition switch ON (II): about 5.0 V |
| 19 | WHT/BLK | IMTM (INTAKE MANIFOLD TUNING (IMT) VALVE MONITOR) | Detects IMT valve position | With ignition switch ON (II): about 5.0 V With engine speed above 4, 050 rpm: about 0 V |
| 20 | BLU/WHT | VTPSW (ROCKER ARM OIL PRESSURE SWITCH) | Detects rocker arm oil pressure switch signal | With engine at low speed: about 0 V With engine at high speed: battery voltage |
| 21 | GRN/RED | LSC (A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE C) | Drives A/T clutch pressure control solenoid valve C | With ignition switch ON (II): current controlled |
| 22 | WHT/BLU | IGPLS3 (No. 3 IGNITION COIL PULSE) | Drives No. 3 ignition coil | With ignition switch ON (II): about 0 V With engine running: pulses |
| 23 | BRN | IGPLS4 (No. 4 IGNITION COIL PULSE) | Drives No. 4 ignition coil | |
| 24 | RED/WHT | VCENTB2 (VIRTUAL GROUND BANK 2) | Provides reference voltage for front A/F sensor (Bank 2, sensor 1) | With warmed up engine at idle: about 3.4-4.8 V |
| 25 | GRN | SHO2SB1 (REAR SECONDARY HEATED OXYGEN SENSOR (REAR SECONDARY HO2S (BANK 1, SENSOR 2))) | Detects rear secondary HO2S (Bank 1, sensor 2) signal | With throttle fully opened from idle and warmed up engine: about 0.6 V* With throttle quickly closed: below 0.4 V* * : (between terminals SHO2SB1 and SO2SGB1) |
| 26 | RED/BLU | TPSB (THROTTLE POSITION (TP) SENSOR B) | Detects TP sensor B signal | With throttle and accelerator pedal pressed: about 4.1 V With throttle and accelerator pedal released: about 1.7V |
| 29 | YEL/GRN | IGPLS1 (No. 1 IGNITION COIL PULSE) | Drives No. 1 ignition coil | With ignition switch ON (II); about 0 V With engine running: pulses |
| 30 | BLU/RED | IGPLS2 (No. 2 IGNITION COIL PULSE) | Drives No. 2 ignition coil | |
| 31 | GRN | IPB1 (IP CELL+ BANK 1) | Detects rear A/F sensor (Bank 1, sensor 1) pump cell | With engine running: about 2.0-5.6 V |
| 32 | GRN/RED | IPB2 (IP CELL+ BANK 2) | Detects front A/F sensor (Bank 2, sensor 1) pump cell | With engine running: about 2.0-5.6 V |
| 33 | GRN | SG5 (SENSOR GROUND) | Sensor ground | Less than 0.2 V at all times |
| 34 | GRN/WHT | SG1 (SENSOR GROUND) | Sensor ground | Less than 0.2 V at all times |
| 35 | GRN/RED | MAP (MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR) | Detects MAP sensor signal | With ignition switch ON (II): about 3.0 V At idle: about 1.0 V (depending on engine speed) |
| Terminal number | Wire color | Terminal name | Description | Signal |
|---|---|---|---|---|
| 36 | YEL/RED | VCC1 (SENSOR VOLTAGE) | Provides sensor reference voltage | With ignition switch ON (II): about 5.0 V |
| 37 | RED | NM (INPUT SHAFT (MAINSHAFT) SPEED SENSOR) | Detects input shaft (mainshaft) speed sensor signal | With ignition switch ON (II): about 0 V or about 5.0 V With engine at idling in N: pulses |
| 38 | BLU | 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: pulses |
| 39 | GRN/YEL | VTS (ROCKER ARM OIL CONTROL SOLENOID) | Drives rocker arm oil control solenoid | At idle: about 0 V |
| 40 | BLK | PG1 (POWER GROUND) | Ground circuit for PCM | Less than 0.2 V at all times |
| 41 | BRN/YEL | LG2 (LOGIC GROUND) | Ground circuit for PCM | Less than 0.2 V at all times |
| 42 | BLK/YEL | IG1 (IGNITION SIGNAL) | Detects ignition signal | With ignition switch ON (II): battery voltage |
| 43 | BLK/WHT | LSD (A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE D) | Drives A/T clutch pressure control solenoid valve D | With ignition switch ON (II): current controlled |
| 44 | YEL | PLA (LINE PRESSURE SOLENOID VALVE A) | Drives line pressure solenoid valve A | Driving with low line pressure: battery voltage Driving without low line pressure: about 0 V |
| 45 | BLU | CKP (CRANKSHAFT POSITION (CKP) SENSOR) | Detects CKP sensor signal | With engine running: pulses |
| 46 | GRN | CMP (CAMSHAFT POSITION (CMP) SENSOR) | Detects CMP sensor signal | With engine running: pulses |
| 47 | RED | F-CAN B H (F-CAN COMMUNICATION SIGNAL B HIGH) | Sends and receives communication signal | With ignition switch ON (II): pulses |
| 48 | GRN | F-CAN B L (F-CAN COMMUNICATION SIGNAL B LOW) | Sends and receives communication signal | With ignition switch ON (II): pulses |