LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Acura >> 2010 >> MDX >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission >> System Description >> Electronic Control System >> PCM A/T Control System Inputs and Outputs at PCM connector A (□) (49P)
April 5, 2026: LEMON Manuals is launched! Read the announcement.

PCM A/T Control System Inputs and Outputs at PCM connector A (□) (49P)

Fig 1: Identifying PCM Connector A (□) (49P)
G08057222Courtesy of AMERICAN HONDA MOTOR CO., INC.
Terminal number Wire color Terminal name Description Signal
A1 WHT VBSOL2 (POWER SOURCE FOR SOLENOID VALVES) Power source for solenoid valves With ignition switch ON (II): battery voltage
A2 PNK SLS (SHIFT LOCK SOLENOID) Drives shift lock solenoid With ignition switch ON (II), in P, brake pedal pressed, and accelerator released: about 0 V
A6 GRN MRLY (PGM-FI MAIN RELAY 1) Drives PGM-FI main relay 1 With ignition switch ON (II): about 0 V
With ignition switch LOCK (0): battery voltage
A8 LT GRN BKSW (BRAKE PEDAL POSITION SWITCH) Detects brake pedal position switch signal With brake pedal released: about 0 V
With brake pedal pressed: battery voltage
A16(1) GRN ATPP (TRANSMISSION RANGE SWITCH P) Detects transmission range switch P position signal In P: about 0 V
In any position other than P: battery voltage
A16(2) GRN ATPP (TRANSMISSION RANGE SWITCH P) Detects transmission range switch P position signal In P: about 0 V
In any position other than P: more than 5.0 V
A32 BRN SCS (SERVICE CHECK SIGNAL) Detects service check signal With service check signal shorted using the HDS: about 0 V
With service check signal opened: about 5.0 V
A36 GRN SUPP (PADDLE SHIFTER + (UPSHIFT SWITCH)) Detects paddle shifter + (upshift switch) signal With ignition switch ON (II) and paddle shifter + (upshift switch) pressed: about 0 V
With paddle shifter + (upshift switch) released: battery voltage
A37 BLU SDNP (PADDLE SHIFTER - (DOWNSHIFT SWITCH)) Detects paddle shifter - (downshift switch) signal With ignition switch ON (II) and paddle shifter - (downshift switch) pressed: about 0 V
With paddle shifter - (downshift switch) released: battery voltage
A48 WHT F-CAN A H (F-CAN COMMUNICATION SIGNAL A HIGH) Sends and receives communication signal With ignition switch ON (II): pulses
A49 RED F-CAN A L (F-CAN COMMUNICATION SIGNAL A LOW) Sends and receives communication signal With ignition switch ON (II): pulses
NOTE: Check the label on the PCM to see if it was made by Keihin or Continental. Refer to the GENERAL TROUBLESHOOTING INFORMATION  for more details.
(1) Keihin PCM
(2) Continental PCM