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

Fig 1: Identifying PCM A/T Control System Connector B
G07362169Courtesy of AMERICAN HONDA MOTOR CO., INC.
TERMINAL DESCRIPTION AND REFERENCE

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 LT GRN VBSOL (POWER SOURCE FOR SOLENOID VALVES) Power source for solenoid valves With ignition switch ON (II): battery voltage
B3 YEL IGP (POWER SOURCE) Power source for PCM With ignition switch ON (II): battery voltage
B10 PUR 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 PNK 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
B34 BLU SG1 (SENSOR GROUND) Sensor ground Less than 0.2 V at all times
B36 GRN 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 TAN 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 LG2 (LOGIC GROUND) Ground circuit for PCM Less than 0.2 V at all times
B42 GRY IG1 (IGNITION SIGNAL) Detects ignition signal With ignition switch ON (II): battery voltage
B43 TAN 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 WHT PLA (LINE PRESSURE SOLENOID VALVE A) Drives line pressure solenoid valve A With engine running
  • With low line pressure: battery voltage
  • With normal line pressure: about 0 V