SERVICE INFORMATION FOR ELECTRICAL INCIDENT
GI-27
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VOLTAGE CHECK METHOD
To help in understanding the diagnosis of open circuits please refer to the previous schematic.
In any powered circuit, an open can be found by methodically checking the system for the presence of voltage.
This is done by switching the DMM to the voltage function.
Connect one probe of the DMM to a known good ground.
Begin probing at one end of the circuit and work your way to the other end.
With SW1 open, probe at SW1 to check for voltage.
voltage; open is further down the circuit than SW1.
no voltage; open is between fuse block and SW1 (point A).
Close SW1 and probe at relay.
voltage; open is further down the circuit than the relay.
no voltage; open is between SW1 and relay (point B).
Close the relay and probe at the solenoid.
voltage; open is further down the circuit than the solenoid.
no voltage; open is between relay and solenoid (point C).
Any powered circuit can be diagnosed using the approach in the previous example.
Testing for “Shorts” in the Circuit
To simplify the discussion of shorts in the system, please refer to the following schematic.
RESISTANCE CHECK METHOD
Disconnect the battery negative cable and remove the blown fuse.
Disconnect all loads (SW1 open, relay disconnected and solenoid disconnected) powered through the
fuse.
Connect one probe of the DMM to the load side of the fuse terminal. Connect the other probe to a known
good ground.
With SW1 open, check for continuity.
continuity; short is between fuse terminal and SW1 (point A).
no continuity; short is further down the circuit than SW1.
Close SW1 and disconnect the relay. Put probes at the load side of fuse terminal and a known good
ground. Then, check for continuity.
continuity; short is between SW1 and the relay (point B).
no continuity; short is further down the circuit than the relay.
Close SW1 and jump the relay contacts with jumper wire. Put probes at the load side of fuse terminal and
a known good ground. Then, check for continuity.
continuity; short is between relay and solenoid (point C).
no continuity; check solenoid, retrace steps.
VOLTAGE CHECK METHOD
Remove the blown fuse and disconnect all loads (i.e. SW1 open, relay disconnected and solenoid discon-
nected) powered through the fuse.
Turn the ignition key to the ON or START position. Verify battery voltage at the battery + side of the fuse
terminal (one lead on the battery + terminal side of the fuse block and one lead on a known good ground).
With SW1 open and the DMM leads across both fuse terminals, check for voltage.
voltage; short is between fuse block and SW1 (point A).
SGI847-A
DTC P0563 BATTERY VOLTAGE
EC-1215
[YD (WITH EURO-OBD)]
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DTC P0563 BATTERY VOLTAGEPFP:24410
On Board Diagnosis LogicEBS011BS
This self-diagnosis has the one trip detection logic.
MI will not light up for this self-diagnosis.
DTC Confirmation ProcedureEBS011BT
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Start engine and let it idle for at least 35 seconds.
4. If DTC is detected, go to EC-1215, "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II” above.
Diagnostic ProcedureEBS011BU
1. INSPECTION START
Are jumper cables connected for the jump starting?
Ye s o r N o
Ye s > > G O T O 3 .
No >> GO TO 2.
2. CHECK BATTERY AND ALTERNATOR
Check that the proper type of battery and alternator is installed.
Refer to, SC-4, "
BATTERY" and SC-13, "CHARGING SYSTEM" .
OK or NG
OK >> GO TO 5.
NG >> Replace with a proper one.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0563
0563Battery voltage highAn excessively high voltage from the battery is
sent to ECM.
Battery
Battery terminal
Alternator
SEF817Y
EC-1216
[YD (WITH EURO-OBD)]
DTC P0563 BATTERY VOLTAGE
3. CHECK JUMPER CABLES INSTALLATION
Check that the jumper cables are connected in the correct sequence.
OK or NG
OK >> GO TO 4.
NG >> Reconnect jumper cables properly.
4. CHECK BATTERY FOR BOOSTER
Check that the battery for the booster is a 12V battery.
OK or NG
OK >> GO TO 5.
NG >> Change the vehicle for booster.
5. PERFORM DTC CONFIRMATION PROCEDURE AGAIN
With CONSULT-II
1. Select “SELF DIAG RESULTS” mode with CONSULT-II.
2. Touch “ERASE”.
3. Perform EC-1215, "
DTC Confirmation Procedure" , again.
4. Is DTC P0563 displayed again?
Without CONSULT-II
1. Erase the Diagnostic Test Mode II (Self-diagnostic results) memory. Refer to EC-1003
.
2. Perform EC-1215, "
DTC Confirmation Procedure" , again.
3. Is DTC 0563 displayed again?
Ye s o r N o
Yes >> GO TO 6.
No >> GO TO 7.
6. REPLACE ECM
1. Replace ECM.
2. Perform initialization of NATS system and registration of all NATS ignition key IDs. Refer to EC-1001,
"NATS (Nissan Anti-theft System)" .
3. Perform Fuel Pump Learning Value Clearing. Refer to EC-994, "
Fuel Pump Learning Value Clearing" .
>>INSPECTION END
SEF439Z
EC-1554
[YD (WITHOUT EURO-OBD)]
DTC P0563 BATTERY VOLTAGE
DTC P0563 BATTERY VOLTAGEPFP:24410
On Board Diagnosis LogicEBS01221
The MI will not light up for this self-diagnosis.
DTC Confirmation ProcedureEBS01222
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Start engine and let it idle for at least 35 seconds.
4. If DTC is detected, go to EC-1554, "
Diagnostic Procedure" .
WITHOUT CONSULT-II
1. Start engine and let it idle for at least 35 seconds.
2. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
3. Perform Diagnostic Test Mode II (Self-diagnostic results) with ECM.
4. If DTC is detected, go to EC-1554, "
Diagnostic Procedure" .
Diagnostic ProcedureEBS01223
1. INSPECTION START
Are jumper cables connected for the jump starting?
Ye s o r N o
Yes >> GO TO 3.
No >> GO TO 2.
2. CHECK BATTERY AND ALTERNATOR
Check that the proper type of battery and alternator is installed.
Refer to SC-4, "
BATTERY" and SC-13, "CHARGING SYSTEM" .
OK or NG
OK >> GO TO 5.
NG >> Replace with a proper one.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0563
0563Battery voltage highAn excessively high voltage from the battery is
sent to ECM.
Battery
Battery terminal
Alternator
SEF817Y
DTC P0563 BATTERY VOLTAGE
EC-1555
[YD (WITHOUT EURO-OBD)]
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EC
3. CHECK JUMPER CABLES INSTALLATION
Check that the jumper cables are connected in the correct sequence.
OK or NG
OK >> GO TO 4.
NG >> Reconnect jumper cables properly.
4. CHECK BATTERY FOR BOOSTER
Check that the battery for the booster is a 12V battery.
OK or NG
OK >> GO TO 5.
NG >> Change the vehicle for booster.
5. PERFORM DTC CONFIRMATION PROCEDURE AGAIN
With CONSULT-II
1. Select “SELF DIAG RESULTS” mode with CONSULT-II.
2. Touch “ERASE”.
3. Perform EC-1554, "
DTC Confirmation Procedure" , again.
4. Is DTC P0563 displayed again?
Without CONSULT-II
1. Erase the Diagnostic Test Mode II (Self-diagnostic results) memory. Refer to EC-1375
.
2. Perform EC-1554, "
DTC Confirmation Procedure" , again.
3. Is DTC 0563 displayed again?
Ye s o r N o
Ye s > > G O T O 6 .
No >> GO TO 7.
6. REPLACE ECM
1. Replace ECM.
2. Perform initialization of NATS system and registration of all NATS ignition key IDs. Refer to EC-1373,
"NATS (Nissan Anti-theft System)" .
3. Perform Fuel Pump Learning Value Clearing. Refer to EC-1370, "
Fuel Pump Learning Value Clearing" .
>>INSPECTION END
SEF439Z
AV-30
AUDIO
Trouble DiagnosesEKS00EHY
AUDIO UNIT
InspectionEKS00EHX
AUDIO UNIT
All voltage inspections are made with:
Ignition switch ON or ACC
Audio unit ON
Audio unit connected
ANTENNA
Using a jumper wire, clip an auxiliary ground between antenna and body.
If reception improves, check antenna ground (at body surface).
If reception does not improve, check main feeder cable for short circuit or open circuit.
Symptom Possible causes Repair order
Audio unit inoperative (no digital
display and no sound from speak-
ers).1. 10A fuse
2. 15A fuse
3. Audio unit ground
4. Audio unit1. Check 10A fuse [No. 4, located in fuse block
(J/B)]. Turn ignition switch ON and verify that
battery positive voltage is present at terminal
10 (with cassette deck), 3 (without cassette
deck) of audio unit.
2. Check 15A fuse (No. 32, located in fuse and
fusible link box) and verify that battery posi-
tive voltage is present at terminal 6 (with cas-
sette deck), 9 (without cassette deck) of
audio unit.
3. Check audio unit ground.
4. Remove audio unit for repair.
Individual rear speaker is noisy or
inoperative.1. Each speaker
2. Output circuit to each speaker1. Check speaker.
2. Check the output circuits to each speaker
between audio unit and each speaker.
AM/FM stations are weak or noisy. 1. Roof antenna
2. Audio unit ground
3. Audio unit1. Check roof antenna.
2. Check audio unit ground condition.
3. Remove audio unit for repair.
Audio unit generates noise in AM
and FM modes with engine run-
ning.1. Poor audio unit ground
2. Loose or missing ground bonding straps
3. Ignition condenser or rear window defogger
noise suppressor condenser
4. Ignition coil
5. Audio unit1. Check audio unit ground.
2. Check ground bonding straps.
3. Replace ignition condenser or rear window
defogger noise suppressor condenser.
4. Check ignition coil.
5. Remove audio unit for repair.
Audio unit generates noise in AM
and FM modes with accessories
on (switch pops and motor noise).1. Poor audio unit ground
2. Antenna
3. Accessory ground
4. Malfunctioning accessory1. Check audio unit ground.
2. Check antenna.
3. Check accessory ground.
4. Replace accessory.
SC-4
BATTERY
BATTERY PFP:00011
How to Handle Battery EKS00313
CAUTION:
If it becomes necessary to start the engine with a booster battery and jumper cables, use a 12-volt
booster battery.
After connecting battery cables, ensure that they are tightly clamped to battery terminals for good
contact.
Never add distilled water through the hole used to check specific gravity.
METHODS OF PREVENTING OVER-DISCHARGE
The following precautions must be taken to prevent over-discharging a battery.
The battery surface (particularly its top) should always be kept
clean and dry.
The terminal connections should be clean and tight.
At every routine maintenance, check the electrolyte level.
This also applies to batteries designated as “low maintenance”
and “maintenance-free”.
When the vehicle is not going to be used over a long period of
time, disconnect the battery cable from the negative terminal. (If
the vehicle has an extended storage switch, turn it off.)
Check the charge condition of the battery.
Periodically check the specific gravity of the electrolyte. Keep a
close check on charge condition to prevent over-discharge.
CHECKING ELECTROLYTE LEVEL
WARNING:
Never allow battery fluid to come in contact with skin, eyes, fabrics, or painted surfaces. After touch-
ing a battery, do not touch or rub your eyes until you have thoroughly washed your hands. If acid con-
tacts eyes, skin or clothing, immediately flush with water for 15 minutes and seek medical attention.
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