EN(H6DO)(diag)-305
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
Step
Check
Yes
No
1
CHECK HARNESS BETWEEN ECM AND OIL
FLOW CONTROL SOLENOID VALVE.
1) Turn the ignition switch to OFF.
2) Disconnect the connectors from ECM and
oil flow control solenoid valve.
3) Measure the resistance of harness between
ECM and oil flow control solenoid valve.
Connector & terminal
(B137) No. 17 — (E67) No. 1:
(B137) No. 16 — (E67) No. 2:
Is the resistance less than 1
:? Go to step 2.
Repair the harness
and connector.
NOTE:
In this case, repair
the following item:
• Open circuit of
the harness be-
tween the ECM
and oil flow control
solenoid valve
connector
• Poor contact of
coupling connector
2
CHECK HARNESS BETWEEN ECM AND OIL
FLOW CONTROL SOLENOID VALVE.
Measure the resistance between ECM and
chassis ground.
Connector & terminal
(B137) No. 17 — Chassis ground:
(B137) No. 16 — Chassis ground:
Is the resistance 1 M
: or
more?
Go to step 3.
Repair the short
circuit to ground in
harness between
ECM and oil flow
control solenoid
valve connector.
3
CHECK OIL FLOW CONTROL SOLENOID
VALVE.
Measure the resistance between oil flow control
solenoid valve terminals.
Terminals
No. 1 — No. 2:
Is the resistance between 6 —
12
:?
Repair the poor
contact of ECM
and oil flow control
solenoid valve con-
nector.
Replace the oil
flow control sole-
noid valve. <Ref. to
ME(H6DO)-55,
Camshaft.>