2007 ISUZU KB P190 Workshop Repair Manual

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Page 5729 of 6020

ISUZU KB P190 2007 Workshop Repair Manual RESTRAINT CONTROL SYSTEM 9A1-47

DTC Will Clear When
The “Passenger Pretensioner Low " voltage comes to
specified voltage.

DTC Chart Test Description
Number(s) below refer to circled numbe

RESTRAINT CONTROL SYSTEM 9A1-47

DTC Will Clear When
The “Passenger Pretensioner Low " voltage comes to
specified voltage.

DTC Chart Test Description
Number(s) below refer to circled number(s) on the
diagnostic chart.
2. This test determines whether the SRS control unit is malfunctioning.
3. This test isolates the malfunction to one side of the passenger pretensioner assembly yellow connecto
r
at the base of the passenger seat.
4. This test determines whether the malfunction is in “Passenger Pretensioner High” circuit.
5. This test determines whether the malfunction is in “Passenger Pretensioner Low” circuit.

Diagnostic Aids
An intermittent condition is likely to be caused by a short
to ground in the passenger pretensioner assembl
y
circuit. Inspect circuits “Passenger Pretensioner High”
and “Passenger Pretensioner Low” carefully for cutting
or chafing. If the wiring pigtail of the passenge
r
pretensioner assembly is damaged, the component
must be replaced. A careful inspection of “Passenge
r
Pretensioner High” and “Passenger Pretensioner Low”,
including the passenger pretensioner assembly pigtail is
essential to ensure that the replacement SRS control
unit will not be damaged.

DTC B0033 (Flash Code 33) Passenger Pretensioner Squib Circuit Short to GND

Step Action Yes No
1 W as the “SRS Diagnostic System Check” performed? Go to Step 2 Go to the “SRS
Diagnostic System Check”
2 1. W hen measurements are requested in this chart use a 5-
8840-0366-0 DMM with a correct terminal adapter from 5-
8840-2835-0.
2. Ignition switch is at “LOCK”.
3. Ignition switch is “ON”.
4. Check the passenger pretensioner air bag squib circuit for short to ground.
W as a problem found? Go to Step 3

3
1. Ignition switch is at “LOCK”.
2. Disconnect passenger pretensioner assembly yellow
connector at the base of the passenger seat.
3. Leave driver air bag assembly connected.
4. Connect SRS driver / passenger load tool 5-8840-2421-0 and
appropriate adapter to passenger air bag assembly harness
connector.
5. Ignition switch is at “ON”.
Is DTC B0033 current? Go to Step 4 Ignition switch is at
“LOCK”.
Replace
passenger
pretensioner assembly .
Go to Step 6
4 1. Ignition switch is at “LOCK”.
2. Disconnect the SRS driver /passenger load tool.
3. Measure the resistance on the SRS control unit harness connector as follow.
z From terminals "11" to "3" and "15" (ground) (with the
passenger air bag)
z From terminals "11" to "3", "12" and "15" (ground)
(without the passenger air bag)
Does 5-8840-0366-0 display “OL” (Infinite)? Go to Step 5 Replace SRS
Harness.
Go to Step 6

BACK TO CHAPTER INDEX TO MODEL INDEX
ISUZU KB P190 2007

Page 5730 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 9A1-48 RESTRAINT CONTROL SYSTEM

Step Action Yes No
5 Measure the resistance on the SRS control unit harness
connector as follow.
�z From terminals "10" to "3" and "15" (ground) (with the

Page 5731 of 6020

ISUZU KB P190 2007 Workshop Repair Manual RESTRAINT CONTROL SYSTEM 9A1-49

DTC B0034 (Flash Code 34) Passenger Pretensioner Squib Circuit Short to
Battery Voltage

RTW 79ALF000301

Circuit Description
W hen the ignition switc

Page 5732 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 9A1-50 RESTRAINT CONTROL SYSTEM

DTC Will Clear When
The “Passenger Pretensioner Low " voltage comes to
specified voltage.

DTC Chart Test Description
Number(s) below refer to circled numbe

9A1-50 RESTRAINT CONTROL SYSTEM

DTC Will Clear When
The “Passenger Pretensioner Low " voltage comes to
specified voltage.

DTC Chart Test Description
Number(s) below refer to circled number(s) on the
diagnostic chart.
2. This test determines whether the SRS control unit is malfunctioning.
3. This test isolates the malfunction to one side of the passenger pretensioner assembly yellow connecto
r
at the base of the passenger seat.
4. This test determines whether the malfunction is in “Passenger Pretensioner High” circuit.
5. This test determines whether the malfunction is in “Passenger Pretensioner Low” circuit.

Diagnostic Aids
An intermittent condition is likely to be caused by a short
to +B in the passenger pretensioner assembly circuit.
Inspect circuits “Passenger Pretensioner High” and
“Passenger Pretensioner Low” carefully for cutting o
r
chafing. If the wiring pigtail of the passenger
pretensioner assembly is damaged, the component
must be replaced. A careful inspection of “Passenge
r
Pretensioner High” and “Passenger Pretensioner Low”,
including the passenger pretensioner assembly pgtail is
essential to ensure that the replacement SRS control
unit will not be damaged.

DTC B0034 (Flash Code 34) Passenger Pretensioner Squib Circuit Short to Battery Voltage

Step Action Yes No
1 W as the “SRS Diagnostic System Check” performed? Go to Step 2 Go to the “SRS
Diagnostic System Check”
2 1. W hen measurements are requested in this chart use a 5-
8840-0366-0 DMM with a correct terminal adapter from 5-
8840-2835-0.
2. Ignition switch is at “LOCK”.
3. Ignition switch is “ON”.
4. Check the passenger air bag squib circuit for a short to voltage.
W as a problem found? Go to Step 3

3
1. Ignition switch is at “LOCK”.
2. Disconnect passenger pretensioner assembly yellow
connector at the base of the passenger seat.
3. Leave driver air bag assembly connected.
4. Connect SRS driver / passenger load tool 5-8840-2421-0 and
appropriate adapter to passenger air bag assembly harness
connector.
5. Ignition switch is at “ON”.
Is DTC B0034 current? Go to Step 4 Ignition switch is at
“LOCK”.
Replace
passenger
pretensioner assembly .
Go to Step 6
4 Measure the resistance on the SRS control unit harness
connector from terminal “11” to terminal “1” (ignition).
Does 5-8840-0366-0 display “OL” (Infinite)? Go to Step 5 Replace SRS
Harness.
Go to Step 6
5 Measure the resistance on the SRS control unit harness connector from terminal “10” to terminal “1” (ignition).
Does 5-8840-0366-0 display “OL” (Infinite)? Go to Chart A Replace SRS
Harness.
Go to Step 6
6 1. Reconnect all the components and ensure all components
are properly mounted.
2. Clear diagnostic trouble codes.
Is this step finished? Go to the “SRS
Diagnostic system Check” ―

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

Page 5733 of 6020

ISUZU KB P190 2007 Workshop Repair Manual RESTRAINT CONTROL SYSTEM 9A1-51

DTC B0041 (Flash Code 41) Driver Pretensioner Squib Circuit Low Resistance

RTW 79ALF000301

Circuit Description
W hen the ignition switch is turned “

Page 5734 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 9A1-52 RESTRAINT CONTROL SYSTEM

DTC Will Set When
The combined resistance of the driver pretensioner
assembly, harness wiring circuits “Driver Pretensioner
High” and “Driver Pretensioner Lo

9A1-52 RESTRAINT CONTROL SYSTEM

DTC Will Set When
The combined resistance of the driver pretensioner
assembly, harness wiring circuits “Driver Pretensioner
High” and “Driver Pretensioner Low”, and connector
terminal contact is above a specified value. This test is
run once each ignition cycle during the “Resistance
Measurement Test” when:
1. No “higher priority faults” are detected during “Turn–
ON”
2. “Ignition 1” voltage is in the specified value.

Action Taken
SRS control unit turns “ON” the “AIR BAG” warning
lamp and sets DTC B0041.

DTC Will Clear When
The ignition switch is turned “LOCK”.

DTC Chart Test Description
Number(s) below refer to circled number(s) on the
diagnostic chart:
2. This test determines whether the malfunction is in
the SRS control unit.
3. This test verifies proper connection of the yello
w
connector at the base of the driver seat.
4. This test checks for proper operation of the shorting
clip in the yellow connector.
5. This test isolate the malfunction to one side of the
SRS coil assembly yellow connector located at the
base of the driver seat.
6. This test determines whether the malfunction is due
to shortening in the wiring.
7. This test determines whether the malfunction is in
the driver pretensionerassembly.

Diagnostic Aids

An intermittent condition is likely to be caused by a short
between circuit “Driver Pretensioner High” or “Drive
r
Pretensioner Low” or a malfunctioning shorting clip on
the driver pretensioner assembly which would require
replacement of the component. The test for this
diagnostic trouble code is only run while the “AIR BAG”
warning lamp is performing the bulb check. W hen a
scan tool “Clear Codes” command is issued and the
malfunction is still present, the DTC will not reappea
r
until the next ignition cycle.

DTC B0041 (Flash Code 41) Driver Pretensioner Squib Circuit Low Resistance

Step Action Yes No
1 Perform the “SRS Diagnostic System Check.”
W as the “SRS Diagnostic System Check” performed? Go to Step 2 Go to the “SRS
Diagnostic System Check”
2
1. Check the driver pretensioner squib circuit for short to voltage
or short to ground.
2. If the problem found, repair as necessary.
W as a problem found? Verify repair Go to Step 3
3

1. Ignition switch is at “LOCK”.
2. Make sure the pretensioner assembly yellow connector
located at the base of the driver seat connected properly.
Is the connector connected properly? Go to Step 4 Seat driver
pretensioner assembly
connector properly.
Go to Step 8

BACK TO CHAPTER INDEX TO MODEL INDEX
ISUZU KB P190 2007

Page 5735 of 6020

ISUZU KB P190 2007 Workshop Repair Manual RESTRAINT CONTROL SYSTEM 9A1-53

Step Action Yes No
4
1. Disconnect and inspect the pretensioner yellow connector
located base of the driver seat.
2. If ok, reconnect the Pretensioner ass

Page 5736 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 9A1-54 RESTRAINT CONTROL SYSTEM

DTC B0042 (Flash Code 42) Driver Pretensioner Squib Circuit High
Resistance

RTW 79ALF000301

Circuit Description
W hen the ignition switch is turned

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