ISUZU KB P190 2007 Workshop Repair Manual
Manufacturer: ISUZU, Model Year: 2007, Model line: KB P190, Model: ISUZU KB P190 2007Pages: 6020, PDF Size: 70.23 MB
Page 5571 of 6020
ELECTRICAL-BODY AND CHASSIS 8A-633
No. Connector face No. Connector face
X1
Black
Fog light relay X8
BlackStarter relay
X2
(C24SE)
Black
Front fog light relay X9
BlackCondenser fan relay
X2
Black
Taillight relay X10
BlackTransmission relay
X3
Black
Horn relay X11
BlackHeater relay
X4
Black
Dimmer relay X12
BlackECM main relay
X5
Black
Glow relay X13
BlackFuel pump relay
X6
(C24SE)
Starter relay X13
(4JA1T- (L))
BlackCondenser fan relay
X6
Black
Headlight relay X14
BlackA/C compressor relay
X7
Black
Starter cut relay X14
(4JA1T- (L))
BlackStarter cut relay
X7
(4JA1T- (L))
Black
CSD relay X15
BlackThermo relay
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Page 5572 of 6020
8A-634 ELECTRICAL-BODY AND CHASSIS
No. Connector face No. Connector face
X16
Black
DIODE
X17
Black
DIODE
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Page 5573 of 6020
CRUISE CONTROL SYSTEM 8B-1
SECTION 8B
CRUISE CONTROL SYSTEM
TABLE OF CONTENTS
PAGE
General Description ...................................................................................................................... 8B- 2
Brake Switch ................................................................................................................................... 8B- 4
Removal ....................................................................................................................................... 8B- 4
Installation .................................................................................................................................. 8B- 4
Adjustment ................................................................................................................................. 8B- 5
Clutch switch .................................................................................................................................. 8B- 5
Removal and Installation ........................................................................................................ 8B- 5
Adjustment ................................................................................................................................. 8B- 5
Starter Switch ................................................................................................................................. 8B- 5
Removal and Installation ........................................................................................................ 8B- 5
Cruise Control Main Switch ........................................................................................................ 8B- 6
Removal ....................................................................................................................................... 8B- 6
Installation .................................................................................................................................. 8B- 6
Cruise Control Switch (Combination Switch) ........................................................................8B- 6
Removal and Installation ........................................................................................................ 8B- 6
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8B-2 CRUISE CONTROL SYSTEM
General Description
The cruise control keeps the vehicle running at a fixed speed until a signal canceling this fixed speed is received.
W hen the main switch “AUTO CRUISE” is turned on with the vehicle in the running mode, the battery voltage is
applied to the control unit (Engine control module). W hen a signal from the control unit while the vehicle is in this
state, the cruise control actuator is activated to operate the system. Also, while the system is operating, the cruise
control set indicator light in the meter assembly lights up.
RTU7Z0SH019601
1. SET/COAST Switch Function
1. Set Function: W hen the SET/COAST switch is pressed and released with the main switch on, the speed at
which the vehicle is running at that moment is stored in the memory, and the vehicle automatically runs at the
stored speed.
2. COAST-down Function: W hen the SET/COAST switch is kept on while the vehicle in running, the vehicle
decelerates during that time. The speed at which vehicle is running when the control switch is pressed in the
memory, and the vehicle automatically returns to the stored speed.
3. Tap-down Function: W hen the SET/COAST switch is pressed and released instantaneously while the
vehicle is running, the vehicle decelerates a mile for each on/off operation. The vehicle speed at which the
vehicle was running when the SET/COAST was released last is stored in the memory, and the vehicle
automatically returns to this stored speed.
2. RESUME/ACCEL Switch Function
1. Resume Function: W hen the RESUME/ACCEL switch is turned on/off after the system is temporarily
deactivated by pressing the brake or clutch pedal while the vehicle is running, the vehicle resumes the speed
stored before the system was released, and the vehicle automatically runs at the stored speed.
2. Accelerate Function: W hen the RESUME/ACCEL switch is kept on the vehicle accelerates its speed during
that time. The vehicle speed at which the vehicle was running when the switch was turned off is stored in the
memory, and the vehicle automatically returns to this speed.
3. Tap-up Function: W hen the RESUME/ACCEL switch is turned on and off instantaneously while the vehicle
is running, the vehicle decelerates a mile for each on/off operation. The vehicle speed at which the vehicle
was running when the switch was turned off last is stored in the memory, and the vehicle automatically
returns to this stored speed.
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Page 5575 of 6020
CRUISE CONTROL SYSTEM 8B-3
3. CANCEL Function
1. Temporary Cancellation:
• Brake pedal is pressed.
• Clutch pedal is pressed. (M/T)
• Select lever is shifted to any position other than “D”, “3”, “2” or “L”. (A/T)
• Cancel switch is operated.
• Vehicle speed exceeds about 20 km/h over the vehicle speed stored in the memory.
Turning the RESUME/ACCEL switch will return the vehicle to the speed stored in the cruise control memory.
2. Complete Cancellation:
• Starter switch or the main switch is turned off.
• Fail-safe function is activated.
• Vehicle speed is about 38 km/h.
• Speed becomes 20 km/h or less form the speed memorized by control unit.
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8B-4 CRUISE CONTROL SYSTEM
Brake Switch
RTW 3A0MH000101
Removal
1. Disconnect the battery ground cable.
2. Remove the brake switch.
• Disconnect the connector
1.
• Loosen lock nuts of the switch
2.
• Remove the switch by turning it
3 .
Installation
To install, follow the removal procedure in reverse order, noting
the following points.
1. Check to see if the brake pedal has been returned by the
return spring to the specified position.
2. Turn the switch clock-wise until the tip of the threaded
portion of the brake switch contacts the pedal arm.
RTW 780SH003201
3. Turn the switch counter-clock-wise until the space between
the tip of the threaded portion and the pedal arm is 0.2 to
1.2 mm (0.01-0.06 in) as shown in the figure.
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CRUISE CONTROL SYSTEM 8B-5
Adjustment
1. Check to be sure that the brake pedal has been completely
returned by the return spring.
2. Disconnect the switch connector.
RTW 780SH003301
3. Release the lock 2 by turning the switch 1 counter-clock-
wise.
4. After doing so, pull the pedal arm
3 to you a little so that
the pedal arm is not pushed in.
5. Making the pedal arm not movable with one hand, push in
the whole switch with the other hand until the plunger of the
switch is pushed in and the switch itself hits the rubber o
f
the pedal arm.
In the condition, turn the switch clock-wise until "click"
sound is made and lock it.
By doing this, the switch is adjusted at 0.2 to 1.2mm (0.01-
0.06 in) clearance.
Clutch Switch
Removal and Installation
Refer to the Clutch Control removal and installation procedure
in Clutch section.
Adjustment
1. Turn the clutch switch or stopper bolt 1 until the switch bolt
or stopper bolt just touches the clutch pedal arm.
2.
Adjust clutch switch or stopper bolt by backing it out half a
turn, and measure the clearance (L) between the clutch
pedal arm and the clutch switch bolt end or stopper bolt.
3. Lock the lock nut
2.
4. Connect the clutch switch connector.
Clutch switch and clutch pedal clearance
mm (in)
Clearance 0.5-1.5 (0.020-0.059)
Starter Switch
431R300001
Removal and Installation
Refer to the Starter Switch removal and installation procedure
of Start and Charging in Body and Chassis section.
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8B-6 CRUISE CONTROL SYSTEM
Cruise Control Main Switch
Removal
1. Disconnect the battery ground cable.
RTW 78ASH001801
2. Remove the side ventilation grille 1.
RTW 78ASH002301
3. Disconnect the switch connector and push the lock from the
backside of the side ventilation grille to remove the cruise
control main switch.
Installation
To install, follow the removal procedure in reverse order, noting
the following point.
1. Push in the switch with your fingers until it locks securely.
Cruise Control Switch (Combination Switch)
Removal and Installation
Refer to the Lighting Switch (Combination Switch) removal and
installation procedure of Lighting in Body and Chassis section.
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Page 5579 of 6020
Cruise Control – HFV6 Page 8C–1
8C
Cruise Control – HFV6
ATTENTION
Before performing any Service Operation or other procedure described in this Section, refer to General Information Warnings, Cautions and Notes for correct workshop practices with regard to safety and/or property damage.
1 General Information ...............................................................................................................................3
1.1 WARNINGS, CAUTIONS and NOTES................................................................................................... ................. 3
Definition of WARNING, CAUTION and NOTE Statements ............................................................................. .... 3
WARNING Defined............................................................................................................................................. 3
CAUTION Defined .............................................................................................................................................. 3
NOTE Defined .................................................................................................................................................... 4
1.2 System Components .............................................................................................................. ............................... 4
Cruise Control Switch Assembly ................................................................................................. ....................... 5
Instrument Cluster Assembly ............................................................................................................................. 5
Clutch Pedal Switch (Manual Only) .............................................................................................. ...................... 5
Stop Lamp Switch Assembly .............................................................................................................................. 5
Powertrain Interface Module .............................................................................................................................. 6
Engine Control Module ....................................................................................................................................... 6
Throttle Actuator Control (TAC) Assembly ....................................................................................... .................. 6
1.3 System Operation .................................................................................................................................................. 6
Preliminary Information......................................................................................................................................... 6
Enabled and Disabled ........................................................................................................... ............................. 6
Activated and Deactivated...................................................................................................... ............................ 7
Enabling the Cruise Control.................................................................................................... .............................. 7
Brake Before Cruise .............................................................................................................................................. 7
Activating the Cruise Control .................................................................................................. ............................. 7
Deactivating the Cruise Control ................................................................................................ ........................... 7
Pressing the Brake Pedal ................................................................................................................................... 7
Pressing the Cruise ON–OFF Button .............................................................................................. ................... 8
Rotating the Cruise Control Switch Assembly .................................................................................... ................ 8
Pressing the Clutch Pedal (Manual Vehicles Only) ............................................................................... ............. 8
Decelerating While Cruise Control is Activated ................................................................................. ................. 8
Resuming a Speed After Cruise Control Has Been Deactivated ..................................................................... .. 8
Accelerating While Cruise Control is Activated .................................................................................................. 8
Using the Cruise Control Switch Assembly ........................................................................................................ 8
Pressing the Accelerator Pedal .......................................................................................................................... 8
2 Diagnostics .............................................................................................................................................9
2.1 Diagnostic General Information............................................................................................................................ 9
Basic Knowledge Required ................................................................................................................................... 9
Basic Diagnostic Tools Required ......................................................................................................................... 9
Tech 2 Data List ................................................................................................................................................... 10
2.2 Diagnostic Systems Check ....................................................................................................... .......................... 10
Diagnostic Systems Check ................................................................................................................................. 10
2.3 Wiring Diagrams .................................................................................................................................................. 12
2.4 Cruise Control Inoperative / Malfunctioning.................................................................................... .................. 14
Circuit Description ............................................................................................................................................ 14
Manual Vehicles Only........................................................................................................... ............................ 14
Test Description ............................................................................................................................................... 14
Diagnostic Table Notes ......................................................................................................... ........................... 14
Diagnostic Table............................................................................................................................................... 14
SECTION
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Cruise Control – HFV6 Page 8C–2
3 Service Operations ...............................................................................................................................20
3.1 Cruise Control Main Switch ..................................................................................................... ........................... 20
Remove ................................................................................................................................................................. 20
Test ....................................................................................................................................................................... 20
Terminal Testing............................................................................................................................................... 20
Reinstall ................................................................................................................................................................ 20
3.2 Cruise Control Switch Assembly........................................................................................................................ 21
Remove ................................................................................................................................................................. 21
Test ....................................................................................................................................................................... 21
Terminal Testing............................................................................................................................................... 21
Reinstall ................................................................................................................................................................ 21
3.3 Stop Lamp Switch Assembly .............................................................................................................................. 22
Remove ................................................................................................................................................................. 22
Test ....................................................................................................................................................................... 22
Terminal Testing............................................................................................................................................... 22
Reinstall ................................................................................................................................................................ 22
3.4 Clutch Pedal Switch (Manual Only) .................................................................................................................... 24
Remove ................................................................................................................................................................. 24
Test ....................................................................................................................................................................... 24
Reinstall ................................................................................................................................................................ 25
4 Special Tools ........................................................................................................................................26
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ISUZU KB P190 2007