2007 ISUZU KB P190 fuse

8A-486 ELECTRICAL-BODY AND CHASSIS
TROUBLE SHOOTING
Rear defogger inoperative
Checkpoint Trouble Cause Countermeasure


Reinstall or replace the fuse
No. C7 (10A) and 9
B56


Poor fuse contact or blown

NG


Reinstall or replace the fuse
C18 (20A)

C18 (20A, Fuse box)

Poor fuse contact or blown


Replace the rear defogger
switch

Rear defogger switch function

Switch malfunction

NG
NG
OK
OK
OK

Fuse No. C3 (10A, Fuse box)
and 9
B56


Replace the rear defogger
relay

Relay malfunction

NG
Continued on the next page

Rear defogger relay function


Repair grounding point contact

Grounding point
C2

Poor grounding point contact

NG
OK
Repair open circuit or poor
connector contact between
fuse No. C3 (10A) and 3

B7 , C18 (20A) and 1

B7 , 2 B7 (3 B55) and
1
L4 , 4 B7 (3 B54)
and 3
B46 or 1 B46 and

C2
Voltage between 1 L4 -
ground when the starter switch
and the rear defogger switch
are at on position (should be
battery voltage present)
Open circuit or poor connector
contact

NG
OK



BACK TO CHAPTER INDEX
TO MODEL INDEXISUZU KB P190 2007

ELECTRICAL-BODY AND CHASSIS 8A-539
Keyless Entry System Check
Step Action Value (s) Yes No
1 Check the fuse for the keyless entry power feed
circuit. (EB16 10A)
If a problem found, repair as necessary.
W as the problem found? — Verify repair Go to Step 2
2
1. Check the KCU (Keyless Entry Control Unit)
ground circuit for an open, or short to voltage.
Also, check the KCU ignition feed circuit for an
open or short to ground and the KCU ground
circuit for an open.
2. If a problem is found, repair as necessary.
W as the problem found? — Verify repair Go to Step 3
3
1. Check the front drive side SW circuit for an open,
or short to voltage.
2. If a problem is found, repair as necessary.
W as the problem found? — Verify repair Go to Step 4
4
1. Check the operation "Lock / unlock" by using
transmitter (Remote key) on the vehicle.
W as the problem found? — Go to
Diagnostic Chart Go to
Diagnostic Aids


BACK TO CHAPTER INDEX TO MODEL INDEXISUZU KB P190 2007

ELECTRICAL-BODY AND CHASSIS 8A-623


No. Connector face No. Connector face
E89



White

Immobilizer engine control unit E107




MAP sensor
E90


Black
ECM J1 E108



Blue Cylinder revolution
E92


Silver
Fuse & relay box E109



Blue SPGA
E94
~
E95 NOT USED E110



Brown
Backup light switch
E96


Black
Reverse switch E111



BrownNeutral switch
E97
~
E98 NOT USED E112



Gray
1st switch
E99


Black
O2 sensor-RH E113



Gray Clutch sleave cylinder
E100


Black
O2 sensor-LH E114

~
E115 NOT USED
E101

~
E105 NOT USED E116




Backup light switch
E106



EVRV: Turbo



BACK TO CHAPTER INDEX
TO MODEL INDEXISUZU KB P190 2007

8A-630 ELECTRICAL-BODY AND CHASSIS


No. Connector face No. Connector face
P1



Silver
Battery (+) P9
(4JA1T- (L))
SilverACG (B)
P2


Silver
Relay & Fuse box P9
(4JH1-TC)


Silver
ACG (B)
P3


Black
Starter (S) P10



SilverEngine ground
P4
(HFV6)

Silver
Starter (B) P11



SilverFuse & relay box
P4


Silver
Starter (B) P12



NOT USED
P5



Silver
Battery (-) P13



Gray Shift on the fly actuator
P6


Silver
Body earth (Ground) P14



NOT USED
P7




Battery (ALT) P15



Silver2nd battery (+)
P8


Green
ACG (L)

P9
(HFV6)

Silver
ACG (B)



BACK TO CHAPTER INDEX
TO MODEL INDEXISUZU KB P190 2007

Cruise Control – HFV6 Page 8C–15
Step Action Yes No
3 Check the ignition supply circuits to the Stop Lamp Switch assembly
connector C – 44 pin 1 is serviceable using a multimeter set to
measure voltage, refer to 2.3 W iring Diagrams in this Section
Is there a +12 volt signal present at connector C – 44 pin 1?
Go to Step 4 Replace the faulty
fusible link Main,
IG2 or Stop Light fuse (refer to Note 1).
If either of the
fusible links or fuse blows again, repair
or replace the faulty circuit (refer to
Note 1)
4 1 Connect Tech 2 to the DLC.
2 On Tech 2 select: Body / Powertrain Interface Module / Diagnostic Data
Display.
3 Scroll to Cruise Main Switch.
4 W hile monitoring Tech 2, press the cruise control switch ON– OFF button.
Does Tech 2 display the following:
• Inactive and Active as the cruise control switch is pressed?
Go to Step 5 Go to Step 11
5 1 Scroll to Cruise Resume Switch.
2 While monitoring Tech 2, rotate the cruise control switch.
Does Tech 2 display the following:
• Inactive when the cruise control switch is in the neutral
position?
• Res / Acc when the cruise control switch is rotated to the RES–
ACC. Position? Go to Step 6 Go to Step 12
6
1 Scroll to Cruise Set Switch.
2 W hile monitoring Tech 2, press the cruise control switch.
Does Tech 2 display the following:
• Inactive when the cruise control switch is in the neutral
position?
• Set / Coast when the cruise control switch is pressed to the
SET–COAST position? Go to Step 7 Go to Step 13
7 1 Scroll to Cruise Cancel Switch.
2 While monitoring Tech 2, rotate the cruise control switch.
Does Tech 2 display the following:
• Inactive when the cruise control switch is in the neutral
position?
• Cancel when the cruise control switch is rotated to the CANCEL
position? Go to Step 8 Go to Step 14

BACK TO CHAPTER INDEX
TO MODEL INDEXISUZU KB P190 2007

Cruise Control – HFV6 Page 8C–18
Step Action Yes No
24 1 Disconnect the PIM connector B – 97.
2 Using a multimeter set to measure voltage, back probe between the harness connector B – 97 pin 15 and a known ground.
3 With the aid of an assistant, monitor the voltage on the multimeter and press and release the cruise control switch to
SET–COAST button.
• With the switch in the rest position, the multimeter should
display 0 V.
• With the switch pressed, the multimeter should display
battery voltage.
Does the multimeter display as described? Go to Step 30 Check for short to
ground or open
circuit on circuit.
Repair as required (refer to Note 1).
Go to Step 32
25 1 Disconnect the PIM connector B – 97.
2 Using a multimeter set to measure voltage, back probe between the harness connector B – 97 pin 17 and a known ground.
3 W ith the aid of an assistant, monitor the voltage on the multimeter and rotate and release the cruise control switch to
CANCEL position.
• With the switch in the rest position, the multimeter should
display 0 V.
• W ith the switch rotated clockwise, the multimeter should
display battery voltage.
Does the multimeter display as described? Go to Step 30 Check for short to
ground or open
circuit on circuit.
Repair as required (refer to Note 1).
Go to Step 32
26 1 Disconnect the ECM connector C – 56.
2 Using a multimeter set to measure voltage, back probe between the harness connector C – 56 pin 10 and ground.
3 With the aid of an assistant, monitor the voltage on the multimeter and press and release the brake pedal.
• W ith the brake pedal in the rest position, the multimeter
should display 0 V
• W ith the brake pedal pressed, the multimeter should
display battery voltage
Does the multimeter display as described? Go to Step 30 Check for a blown
fuse C-18.
Check for short to
ground or open circuit
Repair as required (refer to Note 1).
Go to Step 32
27 1 Disconnect the ECM connector C – 56.
2 Using a multimeter set to measure voltage, back probe between the harness connector C – 56 pin 46 and ground.
3 With the aid of an assistant, monitor the voltage on the multimeter and press and release the brake pedal.
• W ith the brake pedal in the rest position, the multimeter
should display battery voltage
• W ith the brake pedal pressed, the multimeter should
display 0 V.
Does the multimeter display as described? Go to Step 28 Check for a blown
fuse C-10.
Check for short to ground or open
circuit
Repair as required (refer to Note 1).
Go to Step 32

BACK TO CHAPTER INDEX TO MODEL INDEXISUZU KB P190 2007

Cruise Control – HFV6 Page 8C–19
Step Action Yes No
28 1 Disconnect the ECM connector C – 56.
2 Using a multimeter set to measure voltage, back probe between the harness connector C – 56 pin 53 and ground.
3 W ith the aid of an assistant, monitor the voltage on the multimeter and press and release the clutch pedal.
• With the clutch pedal in the rest position, the multimeter
should display battery voltage
• W ith the clutch pedal pressed, the multimeter should
display 0 V
Does the multimeter display as described? Go to Step 31 Check for a blown
fuse C-4.
Check for short to ground or open circuit
Repair as required (refer to Note 2).
Go to Step 32
29 Check all associated circuits and connectors for the following:
• Loose or damaged connections
• Intermittent faults.
Refer to the Wiring Diagrams in this Section and repair as required.
W as the repair completed? Go to Step 32 —
30 Replace the PIM, refer to 6E1 Powertrain Interface Module – V6.
W as the repair completed? Go to Step 32 —
31 Replace the ECM module, refer to 6C1-3 Engine Management – V6
Service Operations.
W as the repair completed? Go to Step 32 —
32 Operate the system in order to verify the repair.
Did you correct the condition? System OK Go to Step 1
When all diagnosis and repairs are completed, clear all DTCs and check the system for correct operation.

BACK TO CHAPTER INDEX
TO MODEL INDEXISUZU KB P190 2007

ACCESSORIES 9-23


No. Connector face No. Connector face
D-22
White
Tweeter -LH P-1
SilverBattery (+)
H-14
White
Rear body ∼ Rear door -LH P-2
SilverRelay & Fuse box
H-16
White
Rear body ∼ Rear door -RH P-5
SilverBattery (-)
H-18
White
Engine room ∼ INST P-6
SilverBody earth
H-36
White
INST ~ Front door-RH P-10
SilverEngine ground
H-37
White
INST ~ Front door-LH R-7
BlackRear speaker -LH
H-39
White
INST ~ Front door-LH R-8
BlackRear speaker -RH
H-42
White

INST ~ Front door-driver


H-43

INST ~ Body


H-43
White

INST ~ Body




BACK TO CHAPTER INDEX TO MODEL INDEXISUZU KB P190 2007