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

Fig 1: Identifying PCM A/T Control Connector A □(49P)
G05990609Courtesy of AMERICAN HONDA MOTOR CO., INC.
NOTE: Standard battery voltage is about 12 V

PCM CONNECTOR A □ (49P) 

TERMINALS DESCRIPTION

Terminal Number Wire Color Terminal Name Description Signal
A1 PUR VBSOL2 (POWER SOURCE FOR SOLENOID VALVES) Power source for solenoid valves With ignition switch ON (II)/vehicle in ON mode battery voltage
A2 PNK SLS (SHIFT LOCK SOLENOID) Drives shift lock solenoid With ignition switch ON (II)/vehicle in ON mode, in P, brake pedal pressed, and accelerator released about 0 V
A6 RED MRLY (PGM-FI MAIN RELAY 1) Drives PGM-FI main relay 1 power source for the DTC memory With ignition switch ON (II)/vehicle in ON mode about 0 V
With ignition switch LOCK (0)/vehicle in OFF mode 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 RED ATPP (TRANSMISSION RANGE SWITCH P POSITION) Detects transmission range switch P position signal In P about 0 V
In any position other than P battery voltage
A23 YEL VBUM (VOLTAGE BACK UP) Power source for PCM memory Battery voltage at all times
A32 ORN SCS (SERVICE CHECK SIGNAL) Detects service check signal With service check signal shorted using the HDS about 0V
With service check signal opened about 5 0V
A36 BRN SUPP (PADDLE SHIFTER + (UPSHIFT SWITCH)) Detects paddle shifter + (upshift switch) signal With paddle shifter + (upshift switch) pressed about 0 V
With paddle shifter + (upshift switch) released battery voltage
A37 PUR SDNP (PADDLE SHIFTER - (DOWNSHIFT SWITCH)) Detects paddle shifter - (downshift switch) signal With paddle shifter - (downshift switch) pressed about 0 V
With paddle shifter - (downshift switch) released battery voltage
A48 WHT CANH (CAN COMMUNICATION SIGNAL HIGH) Sends and receives communication signal With ignition switch ON (II)/vehicle in ON mode about 2 5 V (pulses)
A49 BLK CANL (CAN COMMUNICATION SIGNAL LOW) Sends and receives communication signal With ignition switch ON (II)/vehicle in ON mode about 2 5 V (pulses)