FUEL INJECTION SYSTEM
Fault code No. 39 Symptom Open circuit detected in a primary injector.
Diagnostic code No. 36
39Primary injector #1
Primary injector #2
Primary injector #3
Primary injector #4
Order Item/components and probable
causeCheck or maintenance job Reinstatement
•Primary injector coupler
•Main wire harness ECU coupler
•Sub-wire harness 2 coupler•Check the couplers for any pins
that may be pulled out.
•Check the locking condition of
•If there is a malfunction, repair it
and connect the coupler se-
2 Open or short circuit in wire harness
and/or sub-wire harness 2.•Repair or replace if there is an
open or short circuit.
•Between primary injector cou-
pler and ECU coupler.
3 Defective primary injector.•Execute the diagnostic mode.
(Code Nos. 36, 37, 38, 39)
•Replace if defective.
Refer to “CHECKING THE PRI-
MARY INJECTORS” on page