fuel ISUZU KB P190 2007 Workshop Repair Manual

8A-354 ELECTRICAL-BODY AND CHASSIS

Installation
To Install, follow the removal steps in the reverse order.











FUEL GAUGE UNIT
Removal
Dismount the fuel tank first, then remove the fuel gauge unit.
1. Remove the rear inner liner -LH
• Remove the clip
2. Remove the filler neck. • Remove the screw
3. Remove the ground with cable.
4. Remove the fuel tank band. • Disconnect fuel line quick connectors.
5. Remove the fuel gauge unit from the fuel tank.



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ELECTRICAL-BODY AND CHASSIS 8A-355



Installation
Follow the removal procedure in the reverse order to install the
fuel gauge unit.
Pay close attention to the important points mentioned in the
following paragraphs.


Rubber Seal
Be absolutely sure that the fuel gauge unit rubber seal is
correctly seated.



Connector
Be absolutely sure that the fuel gauge unit connector is
securely connected.
This will prevent a poor contact and an open circuit.



VEHICLE SPEED SENSOR (INSTALLED
ON THE TRANSMISSION)
Removal
1. Disconnect the connector.
2. Remove the vehicle speed sensor body by rotating it.







Installation
To Install, follow the removal steps in the reverse order, noting
the following point.
Tighten the vehicle speed sensor to the specified torque.
Vehicle Speed Sensor Tightening Torque N ⋅m (kg ⋅m/lb.ft)
25 ± 4.9 (2.5 ± 0.5/18 ± 3.6)



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8A-362 ELECTRICAL-BODY AND CHASSIS
Tachometer Off-Vehicle Inspection
Remove the tachometer from the meter assembly and
measure the resistance value and the current consumption
between each terminal.


SELF DIAGNOSTIC FUNCTION
Check that the speedometer, tachometer, fuel gauge, and
temperature gauge operate properly.

821R300033


Entering the self-diagnostic mode
1. Push in and hold the “Change Indicator and Reset” knob.
2. Turn the ignition ON.
3. W hen the LCD odometer turns ON, release the “Change Indicator and Reset” knob.
4. Push in and release the “Change Indicator and Reset” knob three times in quick succession.
The meter cluster is now in “Self-diagnostic” mode.
NOTE: Steps 2-4 must be performed within 7 seconds.
The meter cluster will not enter “Self-diagnostic” mode if any of
the following conditions occur:
1. The “Change Indicator and Reset” knob is not depressed when the ignition is turned ON.
2. The “Change Indicator and Reset” knob is released within 600ms of turning the ignition ON.
3. The “Change Indicator and Reset” knob is not depressed and released three times within 7 seconds.


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ELECTRICAL-BODY AND CHASSIS 8A-363

Self –diagnostic mode
LCD condition
• All LCDs are lit during the transition from self-diagnostic
decision mode to self-diagnostic mode
• The odometer/trip indicator scrolls throng its entire range
approximately once every 600 ms. All digits are lit (segment
check indication). This continues until the self-diagnostic
mode is terminated.

Meter and gauge indications
Meter and gauge indications with the change indicator and
reset knob on (self-diagnostic mode) are as shown in the
following table.




RTW 78ASF000101


Speedometer 100 kilometers per hour
Tachometer 3,000 rpm
Fuel gauge
Temperature gauge Mid-point on the dial

All indications return to zero when the change indicator and
reset knob is turned off.
The self-diagnostic mode and the self-diagnostic decision
mode are cancelled when the ignition switch is turned to the
OFF position. They also cancel when a speed pulse is sensed.
If either of the self-diagnostic modes are cancelled by turning
the ignition switch to the OFF position, the diagnostic unit
remains in the stand-by condition.
If cancellation occurs when a speed pulse is sensed, the unit
remains in the ordinary operating condition.



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ELECTRICAL-BODY AND CHASSIS 8A-365




Connector
Ter- No.

minal No.
B23
1 Power ground
2 Cruise main
3 Charge
4 Brake
5 ABS control unit
6 Fuel consumption
7 Tachometer pulse
8 Speedometer pulse
9 Rheostat
10 Taillight relay
11 -
12 -
13 Ambient temperature sensor
14 Seat belt
15 Key remind switch
16 Engine coolant temperature sensor
17 Fuel gauge unit and sender
18 Fuel level
19 Sedimenter
20 Door ajar
21 Power drive
22 3rd start
23 Fuel filter
24 Cruise set
25 Check trans
26 SVS
27 4W D
28 4W D - L
29 A/T oil temperature
30 Check 4W D
31 CAN (+)
32 CAN (-)
33 Turn signal - LH
34 ABS
35 Glow
36 -
37 Hi – beam (+)
38 Check engine
39 Oil pressure
40 SRS control unit

Connector
Ter- No.
minal No.
B24
1 Signal ground
2 SRS ground
3 A/T shift indicator “3”
4 A/T shift indicator “D”
5 A/T shift indicator “N”
6 A/T shift indicator “R”
7 A/T shift indicator “P”
8 Ignition
9 Ambient temperature sensor
10 RR fog light
11 FRT fog light
12 A/T shift indicator “2”
13 A/T shift indicator “L”
14 Turn signal - RH
15 Door SW - driver
16 Power source



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8A-366 ELECTRICAL-BODY AND CHASSIS


Connector No. B23 SOUTH
AFRICA SAUDI
ARABIA ISRAEL EUROPE OTHER
Terminal Connector place
4JJ1-TC HFV6 4JA1T(L) HFV6 4JJ1-TC HFV6 RHD LHD G.EXP
RHD 4JJ1-TC
C24SE
AUSTRALIAHFV6AUSTRALIA
1
Power ground
2 Cruise main
―
― ― ― ― ― ― ― ― ―
3
Charge
4 Brake
5 ABS control unit
6 Fuel consumption ―
―
―
―
―
7 Tachometer pulse
8 Speedometer pulse
9 Rheostat
10 Taillight relay
11 ―

― ― ― ― ― ― ― ― ― ― ― ―
12 ―

― ― ― ― ― ― ― ― ― ― ― ―
13 Ambient
temperature sensor ―

14 Seat belt
15 Key remind switch
16 Engine coolant
temperature sensor
17 Fuel gauge unit and
sender
18 Fuel level
― ― ― ― ― ― ― ― ― ― ― ―
19 Sedimenter ―
―
―
―
―
20 Door ajar
― ― ― ― ― ― ― ― ― ― ―
21 Power drive ―

22 3rd start ―

23 Fuel filter ―
―
―
―
―
24 Cruise set
― ―
―
―
―
―
25 Check trans ―

26 SVS ―

27 4W D ―

28 4W D - L ―

29 A/T oil temperature ―

30 Check 4W D ―

31 CAN (+)
― ― ―
―
―
― ― ―
32
CAN (-)
― ― ―
―
―
― ― ―
33
Turn signal - LH
34 ABS
35 Glow ―
―
―
―
―
36 ―

― ― ― ― ― ― ― ― ― ― ― ―
37 Hi – beam (+)
38 Check engine
39 Oil pressure
40 SRS control unit


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8A-368 ELECTRICAL-BODY AND CHASSIS
140R300007
Thermo Unit Inspection
INSPECTION
Use a circuit tester to measure the thermo unit resistance.
Replace the unit when the result of inspection is found
abnormal.

Temperature
Check
condition 60
°C
(140 °F) 115
°C
(239 °F)
Resistance
value ( Ω)
168
±3.5 +2.5
30.9 –2.0
041R300002


Fuel Gauge Unit Inspection
Measure the fuel gauge unit resistance between the connector
terminals 2
F2 and 3 F2 while shifting the float from “E”
to “F” point.
Fuel Tank Resistance
Level Float position
mm Standard resistance
Ω
F (B) 217.5 +2.2
17 –0.8
106.6
(4JJ1-TC/4JK1-TC)
105.1
(C24SE, 4JA1T(L)) 1/2 (A)
112.8
(4JH1-TC) 45
± 4.5
E (C) 16.2 120
± 2.0


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ELECTRICAL-BODY AND CHASSIS 8A-369
Low Fuel Indicator Light
1. Disconnect the fuel gauge unit wire connector.
2. Turn the key switch on. Check that the bulb lights.
If operation is not correct, remove and check the bulb or circuit.
or If check whether low fuel turns on fuel input (B-24) at the
time of open and key on.
∗ meter is check at low fuel



RTW 78ASH001501




Check level sensor operation
1. Remove the fuel gauge unit.
2. Apply battery voltage between terminal (B) and (C) through a 1.12 watt bulb. Check that the bulb lights.
Note:
It will take a short time for the bulb light.
3. Submerge the sensor in fuel. Check that the bulb goes out.
If operation is not correct, replace the fuel tank unit.

BRAKE SYSTEM WARNING LIGHT
The brake system warning light comes on while the parking
brake is set and the engine run position.

RTW 48AMH000101


Note:
The parking brake indicator light circuit is designed to
prevent driving of the vehicle with the parking brake on.
It does not indicate the condition of the parking brake
system.

The parking brake switch is in parallel with the brake fluid
switch.


The brake system warning light also comes on when reservoir
brake fluid level falls below the specified limit with the parking
brake released and the engine run position.

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8A-616 ELECTRICAL-BODY AND CHASSIS


No. Connector face No. Connector face
C152

~
C153 NOT USED

C154



Black
ETC pedal

C155



White
Trigger switch

C156



Black
A-C transducer

C157



Gray
Fuel pump resistor

C158

~
C161 NOT USED

C162



White
EVRV T/C









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ELECTRICAL-BODY AND CHASSIS 8A-619


No. Connector face No. Connector face
E1



Gray
Oil pressure switch E9



Gray
T.D.C sensor
E2
(C24SE)


Magnetic clutch E10



SilverEngine ground
E3


Black
Magnetic clutch AC COMP E11


Natural greenNeutral switch
E4


Green
Generator E12


Natural greenNeutral switch
E5



TPS EGR E13



Gray Injector nozzle 1
E6
(C24SE)



Fuel injector (C24SE) E14



Gray
Injector nozzle 2
E6



Injector pump E15



Gray Injector nozzle 3
E7
(C24SE)



Fuel injector (C24SE) E16



Gray
Injector nozzle 4
E8
(C24SE)



Fuel injector (C24SE) E17



Silver
Generator (B)
E9
(C24SE)



Fuel injector (C24SE) E18
(C24SE)


Ignition coil


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