PCM A/T Control System Inputs and Outputs at PCM connector B (↑ ) (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 |
|---|---|---|---|---|
| B1 | BLK | PG2 (POWER GROUND) | Ground circuit for PCM | Less than 0.2 V at all times |
| B2 | BLK/YEL | VBSOL (POWER SOURCE FOR SOLENOID VALVES) | Power source for solenoid valves | With ignition switch ON (II): battery voltage |
| B3 | YEL/BLK | IGP (POWER SOURCE) | Power source for PCM | With ignition switch ON (II): battery voltage |
| B10 | 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 |
| B21 | 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 |
| B36 | YEL/RED | VCC1 (SENSOR VOLTAGE) | Provides sensor reference voltage | With ignition switch ON (II): about 5.0 V |
| B37 | 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 |
| B38 | 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 |
| B40 | BLK | PG1 (POWER GROUND) | Ground circuit for PCM | Less than 0.2 V at all times |
| B41 | BRN/YEL | LG2 (LOGIC GROUND) | Ground circuit for PCM | Less than 0.2 V at all times |
| B42 | BLK/YEL | IG1 (IGNITION SIGNAL) | Detects ignition signal | With ignition switch ON (II): battery voltage |
| B43 | 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 |
| B44 | 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 |