WCS
THE PARKING BRAKE RELEASE WARNING CONTINUES SOUNDING, OR
DOES NOT SOUND
WCS-31
< SYMPTOM DIAGNOSIS >
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THE PARKING BRAKE RELEASE WARN ING CONTINUES SOUNDING, OR
DOES NOT SOUND
DescriptionINFOID:0000000009462904
• The parking brake warning buzzer sounds continuously during vehicle travel though the parking brake is
released
• The parking brake warning buzzer does not sound at all even though driving the vehicle with the parking
brake applied.
Diagnosis ProcedureINFOID:0000000009462905
1. CHECK PARKING BRAKE WARNING LAMP
1. Start the engine.
2. Check the operation of the brake warning lamp by operating the parking brake.
Is the inspection result normal?
YES >> Replace the combination meter. Refer to MWI-82, "Removal and Installation".
NO >> GO TO 2.
2. CHECK PARKING BRAKE SWITCH SIGNAL CIRCUIT
Perform inspection of the parking brak e switch signal circuit. Refer to MWI-63, "Diagnosis Procedure"
.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace harness.
3. CHECK PARKING BRAKE SWITCH UNIT
Perform a unit inspection for the parking brake switch. Refer to MWI-63, "Component Inspection"
.
Is the inspection result normal?
YES >> Replace the combination meter. Refer to MWI-82, "Removal and Installation".
NO >> Replace the parking brake switch. Refer to PB-7, "Exploded View"
.
Parking brake ON : ON
Parking brake OFF : OFF
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
WW-12
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (IPDM E/R)
DIAGNOSIS SYSTEM (IPDM E/R)
Diagnosis DescriptionINFOID:0000000009944155
AUTO ACTIVE TEST
Description
In auto active test mode, the IPDM E/R sends a drive signal to the follo wing systems to check their operation.
• Front wiper (LO, HI)
• Front fog lamps
• Parking lamps
• Side marker lamps
• Tail lamps
• License plate lamps
• Daytime running lamps
• Headlamps (LO, HI)
• A/C compressor
• Cooling fans (LO, HI)
Operation Procedure
CAUTION:
Do not start the engine.
NOTE:
When auto active test is performed with hood opened, sprinkle water on windshield before hand.
NOTE:
• If auto active test mode cannot be actuat ed, check door switch system. Refer to DLK-100,
"Component Function Check".
• When auto active test mode has to be cancelled halfway through test, turn ignition switch OFF.
1. Close the hood and lift the wiper arms from the windshield. (Prevent windshield damage due to wiper
operation)
2. Turn ignition switch OFF.
3. Turn the ignition switch ON, and within 20 seconds, press the front door switch LH 10 times. Then turn the ignition switch OFF.
4. Turn the ignition switch ON within 10 seconds. Af ter that the horn sounds once, and the auto active test
starts.
5. After a series of the following operations is repeated 3 times, auto active test is completed.
Inspection in Auto Active Test Mode
When auto active test mode is actuated, the following operation sequence is repeated 3 times.
*: Outputs duty ratio of 50% for 5 seconds → duty ratio of 100% for 5 seconds on the cooling fan control module.
Operation se-
quence Inspection Location Operation
1 Front wiper LO for 3 seconds → HI for 3 seconds
2 •Front fog lamps
• Parking lamps
• Side marker lamps
•Tail lamps
• License plate lamps 10 seconds
3 Daytime running lamps 10 seconds
4 Headlamps LO ⇔ HI 5 times
5 A/C compressor ON ⇔ OFF 5 times
6
*Cooling fans LO for 5 seconds → HI for 5 seconds
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
