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Home >> Honda >> 2007 >> Civic GX >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Fuel System & Emissions System (Supplemental) (GX) >> System Description >> Electronic Control Systems >> PCM Inputs and Outputs at PCM Connector A (□) (44P)
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PCM Inputs and Outputs at PCM Connector A (□) (44P)

Fig 1: Identifying PCM Inputs And Outputs At PCM Connector A (□) (44P)
G06769050Courtesy of AMERICAN HONDA MOTOR CO., INC.
CONNECTOR PINOUTS DESCRIPTION CHART

Terminal number Wire color Terminal name Description Signal
4 BLU FANL (RADIATOR FAN CONTROL) Drives radiator fan relay With radiator fan running: about 0 V
With radiator fan stopped: battery voltage
5 GRY FANH (RADIATOR FAN CONTROL) Drives A/C condenser fan relay With A/C condenser fan running at high speed: about 0 V
With A/C condenser fan stopped or running at low speed: battery voltage
6 GRN MRLY (PGM-FI MAIN RELAY 1) Drives PGM-FI main relay 1 Power source for DTC memory With ignition switch ON (II): about 0 V
With ignition switch in LOCK (0): battery voltage
8 ORN IGP (POWER SOURCE) Power source for PCM circuit With ignition switch ON (II): battery voltage
9 BLK SG6 (SENSOR GROUND) Sensor ground Less than 0.2 V at all times
10 WHT STSCNTL (STARTER SWITCH SIGNAL CONTROL) Drives starter control relay 0 V for 2 seconds after turning ignition switch to ON (II), then battery voltage
14 RED ACC (A/C COMPRESSOR CLUTCH RELAY) Drives A/C compressor clutch relay With compressor ON: about 0 V
With compressor OFF: battery voltage
15 PNK IMOFSR (IMMOBILIZER FUEL SHUT-OFF SOLENOID VALVE RELAY) Drives injector control module relay 0 V for 2 seconds after turning ignition switch to ON (II), then battery voltage
16 LT GRN ACPD (A/C PRESSURE SENSOR) Detects A/C pressure sensor signal With A/C switch ON: about 1.7-4.8 V (depending on A/C pressure)
17 YEL APSA (ACCELERATOR PEDAL POSITION (APP) SENSOR A) Detects APP sensor A signal With ignition switch ON (II) and accelerator pedal pressed: about 4.7 V
With ignition switch ON (II) and accelerator pedal released: about 1.0 V
18 PUR APSB (ACCELERATOR PEDAL POSITION (APP) SENSOR B) Detects APP sensor B signal With ignition switch ON (II) and accelerator pedal pressed: about 2.3 V
With ignition switch ON (II) and accelerator pedal released: about 0.5 V
19 RED VCC6 (SENSOR VOLTAGE) Provides sensor reference voltage With ignition switch ON (II): about 5.0 V
20 YEL ETCSRLY (ELECTRONIC THROTTLE CONTROL SYSTEM (ETCS) CONTROL RELAY) Drives electronic throttle control system (ETCS) control relay With ignition switch ON (II): about 0 V
21 LT BLU SUBRLY (PGM-FI SUBRELAY) Drives PGM-FI subrelay With ignition switch ON (II): about 0 V
22 PNK PSPSW (POWER STEERING PRESSURE SWITCH SIGNAL) Detects PSP switch signal At idle with steering wheel straight ahead: about 0 V
At idle with steering wheel at full lock: battery voltage
23 ORN ELD (ELECTRICAL LOAD DETECTOR (ELD)) Detects ELD signal With ignition switch ON (II): about 0.1-4.8 V (depending on electrical load)
24 GRY VCC5 (SENSOR VOLTAGE) Provides sensor reference voltage With ignition switch ON (II): about 5.0 V
25 BRN VCC4 (SENSOR VOLTAGE) Provides sensor reference voltage With ignition switch ON (II): about 5.0 V
26 ORN PF0 (FUEL TANK PRESSURE (FTP) SENSOR) Detects FTP sensor signal With ignition switch ON (II): about 0.5-4.5 V (depending on the amount of fuel)
27 PNK SLS (SHIFT LOCK SOLENOID) Drives shift lock solenoid With ignition switch ON (II), in P, brake pedal pressed, and accelerator pedal released: about 0 V
29 BLU VSSOUT (VEHICLE SPEED SIGNAL OUTPUT) Sends vehicle speed signal Depending on vehicle speed: pulses
31 BRN SCS (SERVICE CHECK SIGNAL) Detects service check signal With service check signal shorted using the HDS: about 0 V
With service check siqnal opened: about 5.0 V
32 RED TF0 (FUEL TANK TEMPERATURE (FTT) SENSOR) Detects FTT sensor signal With ignition switch ON (II): about 0.1-4.8 V (depending on fuel temperature)
33 GRN ECT2 (ENGINE COOLANT TEMPERATURE (ECT) SENSOR 2) Detects ECT sensor 2 signal With ignition switch ON (II): about 0.1-4.8 V (depending on engine coolant temperature)
34 LT BLU SG5 (SENSOR GROUND) Sensor ground Less than 0.2 V at all times
35 BLU SG4 (SENSOR GROUND) Sensor ground Less than 0.2 V at all times
36 WHT CANH (CAN COMMUNICATION SIGNAL HIGH) Sends communication signal With ignition switch ON (II): about 2.5 V (pulses)
37 RED CANL (CAN COMMUNICATION SIGNAL LOW) Sends communication signal With ignition switch ON (II): about 2.5 V (pulses)
39 BRN BKSWNC (BRAKE PEDAL POSITION SWITCH) Detects brake pedal position switch signal With ignition switch ON (II) and brake pedal released: battery voltage
With ignition switch ON (II) and brake pedal pressed: about 0 V
40 LT GRN BKSW (BRAKE PEDAL POSITION SWITCH) Detects brake pedal position switch siqnal With brake pedal released: about 0 V
With brake pedal pressed: battery voltage
41 LT BLU PF2SW (FUEL PRESSURE SWITCH) Detects fuel pressure switch signal With ignition switch ON (II): about 0 V
42 RED WEN (WRITE ENABLE SIGNAL) Detects write enable signal With ignition switch ON (II): about 0 V
43 ORN INJMODE (FUEL INJECTOR CURRENT CONTROL) Changes Injector driver mode With ignition switch in LOCK (0): about 4.5 V
With ignition switch ON (II): about 4.6 V (pulses)
44 PNK S-NET5V (SERIAL COMMUNICATION FOR IMMOBILIZER) Sends serial communication signal With ignition switch ON (II): pulses
With key removed from ignition switch: about 1.4 V