PCM Inputs and Outputs at PCM Connector C (◦) (49P): Notes

Fig 1: Identifying PCM Inputs And Outputs At PCM Connector C (49P)

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Terminal number

Wire color

Terminal name

Description

Signal

46⁽¹⁾

YEL

ATPS (TRANSMISSION RANGE SWITCH S)

Detects transmission range switch S position signal

In S: about 0 V
In any position other than S: about 5.0 V

46⁽²⁾

YEL

ATPS (TRANSMISSION RANGE SWITCH S)

Detects transmission range switch S position signal

In S: about 0 V
In any position other than S: battery voltage

RED/BLU

KS (KNOCK SENSOR)

Detects knock sensor signal

With engine knocking: pulses

WHT/BLU

IMT+ (INTAKE MANIFOLD TUNING (IMT) ACTUATOR +SIDE)

Drives IMT actuator

With ignition switch ON (II): battery voltage

WHT/RED

IMT- (INTAKE MANIFOLD TUNING (IMT) ACTUATOR-SIDE)

Drives IMT actuator

With ignition switch ON (II): battery voltage

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⁾	Continental PCM

⁽²⁾	Keihin PCM