2007 ISUZU KB P190 sensor

8A-624 ELECTRICAL-BODY AND CHASSIS


No. Connector face No. Connector face
F1



Gray
Fuel filter switch F12



BlackFuel clogging switch
F2


Black
Fuel pump sensor F13



BrownFuel filter switch
F3


NOT USED

F4



Gray
Rear ABS speed sensor

F5



Gray
Rear combination light-RH

F6



Black
Rear combination light-LH

F7



White
License plate light

F8



Black
Rear fog light – RH

F9



Black
Rear fog light - LH

F10

~
F11 NOT USED



BACK TO CHAPTER INDEX
TO MODEL INDEXISUZU KB P190 2007

Cruise Control – HFV6 Page 8C–6
The stop lamp switch contacts are normally open with the brake pedal at rest and close when the brake pedal is pressed
turning on the vehicles brake lamps. These switch contacts also double as the cruise cancel signal for the cruise control
operation.
The cruise control initial brake apply signal function switch contacts are normally closed with the brake pedal at rest and
open when the brake pedal is pressed. This switch function is a safety requirement of the vehicle as it ensures that the
cruise control cannot be activated without the brake pedal first being pressed.
Powertrain Interface Module
The Powertrain Interface Module (PIM) is located on the driver’s side, kick trim panel. The purpose of the PIM is to act as
an interface between the drivetrain serial data bus (GMLAN protocol) and the body side data bus (UART Bus protocol).
All inputs from the cruise control switch assembly are directly wired to the PIM. The PIM then takes these inputs,
converts them to GMLAN protocol and sends the messages via the data bus to the engine control module (ECM). The
PIM also receives signals for the cruise control system from the ECM. When the ECM activates cruise control, it sends a
signal through the PIM (which converts it from GMLAN to UART protocol) to display the various cruise control messages
on the instrument cluster assembly.
For further information on the operation of the PIM, refer to 6E1 Powertrain Interface Module – V6.
Engine Control Module
The Engine Control Module (ECM) is mounted on the front of the engine. The role of the ECM is to receive all the inputs
from various sensors (vehicle speed (VSS) etc.) and switches to manage the engine. W hen a request is sent from the
cruise control switch assembly via the PIM to the ECM, the ECM will activate cruise control providing given parameters
are satisfied. Once the cruise is set, the ECM monitors the vehicle speed and controls the throttle actuator assembly thus
controlling the speed of the vehicle.
For further information on the operation of the ECM, refer to 6C1-1 Engine Management – V6 – General Information.
Throttle Actuator Control (TAC) Assembly
The throttle actuator control assembly is located on the front of the inlet manifold. The throttle actuator control assembly
receives signals from the ECM and controls the angle of the throttle plate. Refer to 6C1-1 Engine Management – V6 –
General Information for further information.
1.3 System Operation
Preliminary Information
Enabled and Disabled
The cruise control is enabled / disabled by pressing the cruise control ON–OFF switch mounted on the lower right hand
side of the dash panel. When cruise control is enabled, the cruise control ON–OFF switch illuminates and the cruise
control is ready for a speed to be set (cruise control activated). W hen the cruise control is disabled, the cruise control
cannot be activated.

Cruise Enabled
1 The cruise control ON–OFF switch (1) supplies 12 Volts to the Powertrain Interface Module (PIM) when it
is pressed.
2 The cruise control ON–OFF switch lamp (2) turns on.
Cruise Disabled
1 W hen cruise control ON–OFF switch (1) is pressed again, power is removed from the PIM disabling the
cruise control.
2 The cruise control ON–OFF switch lamp (2) turns off.
Figure 8C – 4

BACK TO CHAPTER INDEX TO MODEL INDEXISUZU KB P190 2007

9A-20 SUPPLEMENTAL RESTRAINT SYSTEM
Repairs And Inspections Required
After An Accident
If any SRS components are damaged, they must be
replaced. If SRS component mounting points are
damaged, they must be replaced.
• Never use SRS parts from another vehicle. This does not include remanufactured parts purchased
from an authorized dealer; they may be used fo
r
SRS repairs.
• Do not attempt to service the SRS control unit, the SRS coil assembly, or the air bag assembly.
Service of these items is by replacement only.
• Verify the part number of the replacement air bag assembly.

CAUTION: Never use the air bag assembly from
another vehicle or different model year air bag
assembly.
Use only a new air bag assembly matched to the
TFR/S which is being repaired.
CAUTION: Proper operation of the sensors and
supplemental restraint system (SRS) requires that
any repairs to the vehicle structure return it to the
original production configuration. Deployment
requires, at a minimum, replacement of the SRS
control unit, air bag assembly and dimensional
inspection of the steering column. Any visible
damage to the SRS control unit mounting bracket
(s) requires replacement, and the steering column
must be dimensionally inspected, whethe
r
deployment occurred or not.
Accident With Deployment – Component
Replacement And Inspections
Certain SRS components must be replaced or
inspected for damage after a frontal crash involving air
bag deployment. Those components are:
• Air bag assembly
• SRS control unit

CAUTION: Refer to “SRS control unit Replacement
Guidelines” below for important information on
SRS control unit replacement in both deployment
and non-deployment crashes.
• SRS coil assembly — Inspect wiring and connecto
r
for any signs of scorching, melting, or damage due
to excessive heat. Replace if damaged. Refer to
section “SRS Coil Assembly” in this manual.

Accident With or Without Deployment –
Component Inspection
Certain SRS system components and rotation parts
must be inspected after any crash, whether the air bag
has been deployed or not. Those components are:
• Steering column — Refer to Inspection Required “After an Accident” in this manual.
• Knee bolsters and mounting points — Inspect fo
r
any distortion, bending, cracking, or other damage.
• I/P steering column reinforcement plate — Inspect for any distortion, bending, cracking, or othe
r
damage.
• I/P braces — Inspect for any distortion, bending, cracking, or other damage.
• Seat belts and mounting points — Refer to “Seat Belts” in Section “Seat Belt” of this workshop
manual.

SRS Control Unit Replacement Guidelines
SRS control unit replacement policy requires
replacement of the SRS control unit after a crash
involving air bag deployment when the “SRS W arning
Lamp” turned “ON”, the “SRS Diagnosis” should be
done according to Section “Restraint Control System.”

Wiring Damage
If any SRS wire harness is damaged, it should be
replaced. Don't repair the SRS harness. It is
replacement only.

SRS Connector (Plastic Body And
Terminal Metal Pin) Damage
If any connector or terminal in the SRS wire harness
(except pigtails) is damaged, it should be replaced.

SRS Wire Pigtail Damage
If the wiring pigtail (a wire or wires attached directly to
the device, not by a connector) is damaged, the entire
component (with pigtail) must be replaced. Examples
of “pigtail” components are the driver air bag
assembly, the passenger air bag assembly, and the
SRS coil assembly.


BACK TO CHAPTER INDEX TO MODEL INDEXISUZU KB P190 2007

SUPPLEMENTAL RESTRAINT SYSTEM 9A-21
On–Vehicle Service
Service Precaution
WARNING: WHEN PERFORMING SERVICE ON OR
AROUND SRS COMPONENTS OR SRS WIRING,
FOLLOW THE PROCEDURES LISTED BELOW TO
TEMPORARILY DISABLE THE SRS. FAILURE TO
FOLLOW PROCEDURES COULD RESULT IN
POSSIBLE AIR BAG DEPLOYMENT, PERSONAL
INJURY OR OTHERWISE UNNECESSARY SRS
REPAIRS.
The SRS control unit in Driver–Passenger SRS can
maintain sufficient voltage to cause a deployment fo
r
up to 15 seconds after the ignition switch is turned
“OFF,” the battery is disconnected, or the fuse
powering the SRS control unit is removed.
Many of the service procedures require removal of the
“SRS” fuse, and disconnection of the air bag assembl
y
from the deployment loop to avoid an accidental
deployment. If the air bag assembly is disconnected
from the deployment loop as noted in the “Disabling
the SRS” procedure that follows, service can begin
immediately without waiting for the 15 second time
period to expire.

Disabling The SRS
Removal
Turn the ignition switch to “LOCK” and remove the
key.
1. Remove the SRS fuse “SRS”, from the side of the driver’s side of the instrument panel fuse block o
r
disconnect the battery.
2. Disconnect the yellow connector at the base of the steering column.
3. Remove the glove box assembly, refer to “Passenger Air Bag Assembly Replacement” in
this manual.
4. Disconnect the yellow connector behind the glove box assembly.
CAUTION: With the “SRS” fuse removed and
ignition switched “ON”, the “SRS” warning lamp
will be “ON”. This is normal operation and does
not indicate an SRS malfunction.

Enabling The SRS
Installation
CAUTION: Never use the air bag assembly from
another vehicle or different model year air bag
assembly.
Use only a new air bag assembly matched to the
TFR/S which is being repaired.
Turn the ignition switch to “LOCK” and remove the
key.
1. Connect the yellow connector passenger air bag assembly.
2. Install the glove box assembly. Refer to “Passenger air bag assembly replacement” in this
manual.
3. Connect the yellow connector at the base of the steering column.
4. Install the “AIR BAG” fuse “SRS” to the side of the driver’s side of the instrument panel fuse block o
r
connect the battery.
Turn the ignition switch to “ON” and verify that the
“SRS” warning lamp flashes seven times and then
turns to “LOCK”. If it does not operate as described,
perform the “SRS Diagnostic System Check” in this
manual.

Handling / Installation / Diagnosis
1. The air bag assembly should not be subjected to temperatures above 65
°C (150°F).
2. The air bag assembly, and SRS control unit, should not be used if they have been dropped from
a height of 100 centimeters (3.28 feet) or more.
3. W hen the SRS control unit is replaced, it must be oriented with the arrow on the sensor pointing
toward the front of the vehicle. It is very important
for the SRS control unit to be located flat on the
mounting surface, parallel to the vehicle datum
line. It is important that the SRS control unit
mounting surface is free of any dirt or other foreign
material.
4. Do not apply power to the SRS unless all components are connected or a diagnostic chart
requests it, as this will set a diagnostic trouble
code.
5. The “SRS Diagnostic System Check” must be the starting point of any SRS diagnostics. The “SRS
Diagnostic System Check” will verify proper “SRS”
warning lamp operation and will lead you to the
correct chart to diagnose any SRS malfunctions.
Bypassing these procedures may result in
extended diagnostic time, incorrect diagnosis, and
incorrect parts replacement.


BACK TO CHAPTER INDEX TO MODEL INDEXISUZU KB P190 2007

SUPPLEMENTAL RESTRAINT SYSTEM 9A-35
SRS Control Unit
Service Precautions
WARNING: DURING SERVICE PROCEDURES, BE
VERY CAREFUL WHEN HANDLING THE SRS
CONTROL UNIT. NEVER STRIKE OR JAR THE SRS
CONTROL UNIT. UNDER SOME
CIRCUMSTANCES, IT COULD CAUSE
DEPLOYMENT AND RESULT IN PERSONAL
INJURY OR IMPROPER OPERATION OF THE
SUPPLEMENTAL RESTRAINT SYSTEM (SRS).
THE SRS CONTROL UNIT MOUNTING BRACKET
BOLTS MUST BE CAREFULLY TORQUED TO
ASSURE PROPER OPERATION. NEVER POWER
UP THE SRS WHEN THE SRS CONTROL UNIT IS
NOT RIGIDLY ATTACHED TO THE VEHICLE. THE
SRS CONTROL UNIT COULD BE ACTIVATED
WHEN POWERED WHILE NOT RIGIDLY
ATTACHED TO THE VEHICLE WHICH COULD
CAUSE DEPLOYMENT AND RESULT IN
PERSONAL INJURY.
WARNING: PROPER OPERATION OF THE SRS
CONTROL UNIT REQUIRES THE SRS CONTROL
UNIT TO BE RIGIDLY ATTACHED TO THE
VEHICLE STRUCTURE AND THAT THE ARROW
ON THE SENSOR BE POINTING TOWARD THE
FRONT OF THE VEHICLE.
The SRS control unit is specifically calibrated and is
keyed to the SRS control unit location SRS wiring
harness. Caution should be used to ensure prope
r
location of the SRS control unit. The keying of the
SRS control unit to its location and wiring harness
connectors should never be modified in the field.

Removal
1. Disable the SRS (Refer to “Disabling the SRS” in this section).
2. Remove the transmission knob (for M/T) and transfer lever knob.
3. Remove the front console assembly and disconnect the wiring harness connector.
4. Disconnect the SRS control unit harness connector.

5. Remove the three nuts which are fixing the SRS
control unit.
And remove the SRS control unit.


RTW 79ASH000401
Legend
(1) SRS control unit
(2) SRS Harness


Installation
1. Install the SRS control unit on the bracket and
fixing nuts and tighten the fixing nuts to the
specified torque.
Torque: 7 ±
±±
±
2 N ⋅
⋅⋅
⋅
m (0.7 ±
±±
±
0.2 kgf ⋅
⋅⋅
⋅
m/61 lb in)
2. Connect the SRS control unit harness connector.
3. Install the front console.
4. Install the transmission knob (for M/T) and transfe
r
lever knob.



BACK TO CHAPTER INDEX TO MODEL INDEXISUZU KB P190 2007

9A1-62 RESTRAINT CONTROL SYSTEM

DTC B0051 (Flash Code 51) Air Bag Squib Circuit Activated (Crash)



RTW 79ALF000301

Circuit Description
The SRS control unit contains a sensor which converts
vehicle velocity changes to an electrical signal. The
electrical signal generated is processed by the SRS
control unit and then compared to a value stored in
memory. W hen the generated signal exceeds the
stored value, the SRS control unit will cause current to
flow through the air bag assembly deploying the ai
r
bags and causing DTC B0051 to set.

DTC Will Set When
The SRS control unit detects a frontal crash, up to 30
degrees off the centerline of the vehicle, of sufficient
force to warrant deployment of the air bags.

Action Taken

SRS control unit turns “ON” the “SRS” warning lamp
and records “Crash Data”, and sets a diagnostic trouble
code.

DTC Will Clear When
The SRS control unit is replaced.

DTC Chart Test Description
Number(s) below refer to step number(s) on the
diagnostic chart:
2. If the air bag assembly(s) has not deployed, DTC
B0051 may have been falsely set.
3. If DTC B0051 has set with no signs of frontal impact,
the diagnostic trouble code has been falsely set.

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

RESTRAINT CONTROL SYSTEM 9A1-75

DTC B0071 (Flash Code 71) SRS Control Unit Internal Fault



RTW 79ALF000301
Circuit Description
DTC B0071 is an indication of a potential internal SRS
control unit malfunction and will set if any of the
following conditions are detected:
1) Microprocessor energy reverse time failure.
2) EEPROM read / write failure.
3) ROM check sum.
4) Calibration check sum fault.
5) Inflators reserve voltage low.
6) Inflators electronic sensor active signal not detected during commanded deployment.
7) QSDD (High-side/Low-side) FET failure.
8) Frontal accelerometer failure.
9) Phase lock loop lost lock.
10) QSDD communication fault.
DTC Will Set When
Any of the above indicated malfunctions are detected by
the SRS control unit. The malfunctions described
above are tested mainly during “Continuous Monitoring”
and some are run each ignition cycle.

Action Taken
SRS control unit turns “ON” the “SRS” warning lamp
and sets a diagnostic trouble code.

DTC Will Clear When
The SRS control unit is replaced.


BACK TO CHAPTER INDEX TO MODEL INDEXISUZU KB P190 2007

11A-10 IMMOBILIZER SYSTEM (C24SE, 4JA1-T)
Pin-outs; For Electronic Control Engine (C24SE)
RUW 38HSF000201


No. Pin Function
A-1 Antenna coil positive
A-2

A-3 Antenna coil negative
B-1 Starter Relay
B-2 Ground
B-3 Voltage from ignition switch ON
B-4 Back up voltage supply
B-5 To Tech-2
B-6 Vehicle speed sensor
B-7 Communication: carry on line from ECM to ICU (Check engine lamp)
B-8 Communication: carry on line from ICU to ECM (Communication line W)


BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007