Infiniti M45 (Y34). Manual - part 349
TROUBLE DIAGNOSIS
EC-85
C
D
E
F
G
H
I
J
K
L
M
A
EC
15.
CHECK IGNITION TIMING AGAIN
1.
Run engine at idle.
2.
Check ignition timing with a timing light.
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 16.
16.
CHECK TIMING CHAIN INSTALLATION
Check timing chain installation. Refer to
OK or NG
OK
>> GO TO 17.
NG
>> 1. Repair the timing chain installation.
2. GO TO 4.
17.
DETECT MALFUNCTIONING PART
Check the following.
●
Check camshaft position sensor (PHASE) and circuit. Refer to
.
●
Check crankshaft position sensor (POS) and circuit. Refer to
OK or NG
OK
>> GO TO 18.
NG
>> 1. Repair or replace.
2. GO TO 4.
18.
CHECK ECM FUNCTION
1.
Substitute another known-good ECM to check ECM function. (ECM may be the cause of an incident, but
this is a rare case.)
2.
Perform initialization of all IVIS (NATS) system and registration of all IVIS (NATS) ignition key IDs. Refer
to
BL-174, "ECM Re-Communicating Function"
.
>> GO TO 4.
12
±
5
°
BTDC (in P or N position)
PBIB1242E