Nissan Altima 2007-2012 Service Manual: Rear window defogger power supply and ground circuit
Description
Heats the heating wire with the power supply from the rear window defogger relay to prevent the rear window from fogging up.
Component Function Check
1. CHECK REAR WINDOW DEFOGGER
Check that the heating wire of rear window defogger is heated when turning the rear window defogger switch ON.
Is the inspection result normal? YES >> Rear window defogger is OK.
NO >> Refer to DEF-13, "Diagnosis Procedure".
Diagnosis Procedure
1. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch ON.
2. Check voltage between rear window defogger connector and ground.
Is the inspection result normal? YES >> GO TO 2
NO >> GO TO 3
2. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear window defogger.
3. Check continuity between rear window defogger connector and ground.
Is the inspection result normal? YES >> GO TO 5
NO >> Repair or replace harness.
3. CHECK HARNESS CONTINUITY 1
1. Turn ignition switch OFF.
2. Disconnect condenser and rear window defogger.
3. Check continuity between condenser connector (A) and rear window defogger connector (B).
Is the inspection result normal? YES >> GO TO 4
NO >> Replace condenser. Refer to DEF-66, "Removal and Installation - Coupe" or DEF-66, "Removal and Installation - Sedan".
4. CHECK HARNESS CONTINUITY 2
1. Disconnect fuse block (J/B).
2. Check continuity between fuse block (J/B) connector (A) and condenser connector (B).
Is the inspection result normal? YES >> GO TO 6
NO >> Replace or repair harness.
5. CHECK FILAMENT
Check filament.
Refer to DEF-14, "Component Inspection".
Is the inspection result normal? YES >> Refer to GI-42, "Intermittent Incident".
NO >> Repair filament. Refer to DEF-64, "Inspection and Repair".
6. CHECK INTERMITTENT INCIDENT
Check intermittent incident.
Refer to GI-42, "Intermittent Incident".
Is the inspection result normal? YES >> Check the following.
• Battery power supply circuit.
• Fuse block (J/B).
NO >> Repair or replace the malfunctioning parts.
Component Inspection
1. CHECK FILAMENT
Check the filament for damage or open circuits.
Refer to DEF-64, "Inspection and Repair".
Is the inspection result normal? YES >> Inspection End.
NO >> Repair filament. Refer to DEF-64, "Inspection and Repair".
Rear window defogger relay
Description Power is supplied to the rear window defogger with BCM control. Component Function Check 1. CHECK REAR WINDOW DEFOGGER RELAY POWER SUPPLY CIRCUIT Check that an operation noise of rear ...Driver side door mirror defogger
Description Heats the heating wire with the power supply from the rear window defogger relay to prevent the door mirror from fogging up. Component Function Check 1. CHECK DOOR MIRROR DEFOGGER ...Other materials:
Subwoofer (sedan)
Description
The audio unit sends audio signals to the BOSE speaker amp. The BOSE speaker
amp. amplifies the audio
signals before sending them to the subwoofers using the audio signal circuits.
Diagnosis Procedure
1.HARNESS CHECK
1. Disconnect BOSE speaker amp. connector B122 and suspect
rea ...
B1086 – B1089 seat belt pre-tensioner
LH
Description
DTC B1086 – B1089 SEAT BELT PRE-TENSIONER LH
The seat belt pre-tensioner LH is wired to the air bag diagnosis sensor unit.
The air bag diagnosis sensor unit
will monitor for opens and shorts in detected lines to the seat belt pre-tensioner
LH.
PART LOCATION
Refer to SRC-7, &qu ...
Combination meter
Diagnosis Procedure
1.CHECK FUSES
Check for blown combination meter fuses.
Is the inspection result normal?
YES >> GO TO 2
NO >> If fuse is blown, be sure to eliminate cause of malfunction before
installing new fuse.
2.POWER SUPPLY CIRCUIT CHECK
1. Disconnect combination meter ...