

OPERATION
FUNCTION
TROUBLE JUDGMENT
PROBABLE CAUSES
DIAGNOSIS PROCEDURE
STEP 1. Check suction control valve itself.


Q.
Is the check result normal?


STEP 2. Connector check: A-44 rail pressure sensor connector.

Q.
Is the check result normal?

STEP 3. Connector check: C-105 engine-ECU connector

Q.
Is the check result normal?

STEP 4. Check harness between A-44 (terminal No. 3) rail pressure sensor connector and C-105 (terminal No. 88) engine-ECU connector.


Q.
Is the check result normal?

STEP 5. Check harness between A-44 (terminal No. 1) rail pressure sensor connector and C-105 (terminal No. 70) engine-ECU connector.


Q.
Is the check result normal?

STEP 6. Check harness between A-44 (terminal No. 2) rail pressure sensor connector and C-105 (terminal No. 64) engine-ECU connector.


Q.
Is the check result normal?

STEP 7. Perform voltage measurement at A-44 rail pressure sensor connector.

Q.
Is the check result normal?


