Infiniti QX4 (R50). Manual - part 478
10
CHECK CIRCUIT CONTINUITY BETWEEN ECM AND AUTO AMP.
Check circuit continuity between ECM harness terminal No. 51 and auto amp. harness terminal No. 6 (17).
RHA879H
Continuity should exist.
If OK, check harness for short.
OK or NG
OK
©
Replace auto amp.
NG
©
1. Repair harness or connector.
2. Go to “STEP-BY-STEP PROCEDURE”, “Self-diagnosis”, HA-45 and perform self-diag-
nosis STEP 4.
Confirm that magnet clutch operation is normal.
11
CHECK CIRCUIT CONTINUITY BETWEEN A/C RELAY AND ECM
Check circuit continuity between A/C relay harness terminal No. 1 and ECM harness terminal No. 27.
RHA474GB
Continuity should exist.
OK or NG
OK
©
Check harness for short.
NG
©
Repair harness or connector.
SEF090M
COMPONENT INSPECTION
NBHA0068
A/C Relay
NBHA0068S01
Check continuity between terminal Nos. 3 and 5.
Conditions
Continuity
12V direct current supply between terminal Nos. 1 and 2
Yes
No current supply
No
If NG, replace relay.
TROUBLE DIAGNOSES
Magnet Clutch (Cont’d)
HA-110