Infiniti I30 (A33). Manual — part 266

Wiring Diagram

NHEC0226

MEC741C

SEF858Y

GI

MA

EM

LC

FE

AT

AX

SU

BR

ST

RS

BT

HA

SC

EL

IDX

DTC P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE

(CIRCUIT)

Wiring Diagram

EC-379

Diagnostic Procedure

NHEC0227

1

CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT

1. Turn ignition switch “OFF”.
2. Disconnect EVAP canister purge volume control solenoid valve harness connector.

SEF266X

3. Turn ignition switch “ON”.
4. Check voltage between EVAP canister purge volume control solenoid valve terminal 2 and ground with CONSULT-II or

tester.

SEF333X

OK or NG

OK

©

GO TO 3.

NG

©

GO TO 2.

2

DETECT MALFUNCTIONING PART

Check the following.

I

Harness connectors M46, F44

I

Fuse block (J/B) connector M19

I

15A fuse

I

Harness for open or short between EVAP canister purge volume control solenoid valve and fuse

©

Repair harness or connectors.

DTC P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE

(CIRCUIT)

Diagnostic Procedure

EC-380

3

CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OUTPUT SIGNAL CIRCUIT
FOR OPEN AND SHORT

1. Turn ignition switch “OFF”.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal 1 and EVAP canister purge volume control solenoid valve terminal 1.

Refer to Wiring Diagram.

Continuity should exist.

4. Also check harness for short to ground and short to power.

OK or NG

OK (With CONSULT-II)

©

GO TO 4.

OK (Without CONSULT-
II)

©

GO TO 5.

NG

©

Repair open circuit or short to ground and short to power in harness or connetors.

4

CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION

With CONSULT-II

1. Start engine.
2. Perform “PURG VOL CONT/V” in “ACTIVE TEST” mode with CONSULT-II. Check that engine speed varies according

to the valve opening.

SEF985Y

OK or NG

OK

©

GO TO 6.

NG

©

GO TO 5.

GI

MA

EM

LC

FE

AT

AX

SU

BR

ST

RS

BT

HA

SC

EL

IDX

DTC P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE

(CIRCUIT)

Diagnostic Procedure (Cont’d)

EC-381

5

CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE

With CONSULT-II

Check air passage continuity of EVAP canister purge volume control solenoid valve under the following conditions.

SEF334X

Without CONSULT-II

Check air passage continuity of EVAP canister purge volume control solenoid valve under the following conditions.

SEF335X

OK or NG

OK

©

GO TO 6.

NG

©

Replace EVAP canister purge volume control solenoid valve.

6

CHECK INTERMITTENT INCIDENT

Refer to “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-144.

©

INSPECTION END

DTC P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE

(CIRCUIT)

Diagnostic Procedure (Cont’d)

EC-382