PCM Input and Output Signals (Honda CR-V 2)

The voltage at the PCM contacts and the measurement conditions are given for the connector contacts related to the automatic transmission control system. The voltage at the PCM contacts and the measurement conditions for other connector contacts are described in chapter 11.

The arrangement of contacts in the PCM connector

Connector A of the PCM block (31-pin)

contact No	Wire color	Signal	Description	Measurement conditions/Contact voltage
A2	Yellow with black stripe	IGP2	Power supply circuit from the main relay	Ignition switch in position ON (II): battery voltage Ignition key in position OFF 0 V
AZ	Yellow with black stripe	IGP1	Power supply circuit from the main relay	Ignition switch in position ON (II): battery voltage Ignition key in position OFF 0 V
A4	Black	PG2	"Weight"
A5	Black	PG1	"Weight"
AYU	Green with yellow stripe	SG2	"Mass" of the sensor
A11	Green with white stripe	SG1	"Mass" of the sensor
A20	Yellow with blue stripe	VCC2	Sensor power supply circuit	Ignition key in position ON (II): about 5 V Ignition key in position OFF 0 V
A21	Yellow with red stripe	VCC1	Sensor power supply circuit	Ignition key in position ON (II): about 5 V Ignition key in position OFF 0 V
A23	Brown with yellow stripe	LG2	"Weight"
A24	Brown with yellow stripe	LG1	"Weight"

Connector B of the PCM block (24-pin)

contact No	Wire color	Signal	Description	Measurement conditions / Voltage at contacts
B14	Red with black stripe	LSA+	"+" of the power source of the solenoid valve A for regulating the pressure in the automatic transmission clutches	Ignition key in position ON (II): pulse signal
B16	Brown with white stripe	LSB+	"+" of the power source of the solenoid valve B for regulating the pressure in the automatic transmission clutches	Ignition key in position ON (II): pulse signal
B24	Blue with yellow stripe	LSC+	"+" of the power source of the solenoid valve C for regulating the pressure in the automatic transmission clutches	Ignition key in position ON (II): pulse signal

Connector C of the PCM block (22-pin)

contact No	Wire color	Signal	Description	Measurement conditions / Voltage at contacts
C1	White with black stripe	LSA-	"-" power source of the solenoid valve A for regulating the pressure in the automatic transmission clutches	Ignition key in position ON (II): 0 V
C2	Green	SHC	Control of the solenoid valve from the gear shift	Battery voltage in the following positions: [N] and [1] 1st and 3rd gears in [D] 0 V in the following positions: [2], [P] and [R] 2nd and 4th gears in [D]
SZ	Yellow	SHE	Control of the E-shift solenoid valve	Battery voltage in the following positions: [R] and [N] 0 V in the following positions: [N], [D], [2] and [1]
C4	Green with white stripe	SHB	Control of the solenoid valve B for gear shifting	Battery voltage in the following positions: [2], [1], [P], [R] and [N] 1st and 2nd gears in [D] 0 V in the following positions: 3rd and 4th gears in [D]
C6	Blue with black stripe	SHA	Control of the solenoid valve A of the gear shift	Battery voltage in the following positions: [R] and [1] 1st and 4th gears in [D] 0 V in the following positions: [2], [P] and [N] 2nd and 3rd gears in [D]
C7	White with red stripe	NM	Signal from the drive shaft speed sensor	Ignition switch in position ON (II): 0 or about 5 V Engine running at idle speed in position [N]: 1.5-3.5 V
C8	Black with red stripe	LSB-	"-" of the power source of the solenoid valve B for regulating the pressure in the automatic transmission clutches	Ignition key in position ON (II): 0 V
C10	Blue with white stripe	OP3SW	Signal from 3rd gear clutch pressure switch	Ignition key in position ON (II): about 5 V (there is no pressure in the 3rd gear clutch) The pressure in the 3rd gear clutch is: about 0 V
C11	Green with red stripe	ATP2	Gearbox range selector position signal [2]	In position [2]: 0 V In positions other than [2]: about 5 V
C12	Red with white stripe	ATPRVS	Gear Range Switch [R] Position Signal	In position [R]: 0 V In positions other than [R]: about 5 V
C13	Blue with red stripe	OP2SW	Signal from the 2nd gear clutch pressure switch	Ignition key in position ON (II): about 5 V (there is no pressure in the 2nd gear clutch) The pressure in the 2nd gear clutch is: about 0 V
C14	Red with yellow stripe	TATF	Signal from ATF temperature sensor	Ignition key in position ON (II): 0.2-4.8 V Ignition key in position OFF 0V
C15	Blue	NC	Signal from the intermediate shaft speed sensor	Ignition switch in position ON (II): 0 or about 5 V In motion: about 1.5-3.5 V
C16	White with blue stripe	LSC-	"-"power source of the solenoid valve C for regulating pressure in the automatic transmission clutches	Ignition key in position ON (II): 0 V
C19	Brown	ATP1	Gearbox range selector position signal [1]	In position [1]: 0 V In positions other than [1]: about 5 V

Connector D of the PCM block (17-pin)

contact No	Wire color	Signal	Description	Measurement conditions / Voltage at contacts
D1	Green	O/DSW	Signal from the overdrive switch	Ignition key in the ON position (H): about 5 V Ignition key in position ON (II) and O/D switch in position ON: 0 V
D4	Black with red stripe	ATPN	Transmission Range Switch [N] Position Signal	In position [N]: 0 V In positions other than [N]: about 5 V
D5	White	ATPR	Gear Range Switch [R] Position Signal	In position [R]: 0 V In positions other than [R]: about 5 V
D6	Blue with black stripe	ATRR	Gearbox Range Switch [P] Position Signal	In position [P]: 0V In positions other than (P): about 5 V
D10	White with green stripe	ATPD	Gearbox Range Switch [D] Position Signal	In position [D): 0 V In positions other than [D]: about 5 V

Connector E of the PCM block (31-pin)

contact No	Wire color	Signal	Description	Measurement conditions / Voltage at contacts
E7	Red with yellow stripe	MRLY	Power supply circuit from main relay 1	Ignition key in position ON (II): 0 V Ignition key in OFF position battery voltage
E9	Yellow with black stripe	IG1	Power supply circuit of solenoid valves	Ignition switch in position ON (II): battery voltage Ignition key in position OFF 0 V
E13	White with blue stripe	SLC	Gear Shift Lock Control	Ignition switch in position ON (II), brake pedal pressed, accelerator pedal released: about 5 V
E22	White with black stripe	BKSW	Signal from brake pedal position switch	Brake pedal pressed: battery voltage Brake pedal released: 0 V
E23	Blue	Channel K	PCM-DLC Communication Kagal	Ignition switch in position ON (II): battery voltage
E24	Yellow	SEFMJ	Multiplex communication channel PCM-instrument cluster	Ignition key in position ON (II): about 5 V
E29	Brown	SCS	Signal from SCS contact in DLC connector	Ignition key in position ON (II): SCS contacts in DLC connector open: about 5 V or battery voltage SCS contacts in DLC connector are shorted to ground: 0 V