2007 ISUZU KB P190 Workshop Repair Manual

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Page 5721 of 6020

ISUZU KB P190 2007 Workshop Repair Manual RESTRAINT CONTROL SYSTEM 9A1-39

Step Action Yes No
6 1. Ignition switch is at “LOCK”.
2. Disconnect the SRS driver /passenger load tool 5-8840-2421- 0 from the SRS coil assembly harness

Page 5722 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 9A1-40 RESTRAINT CONTROL SYSTEM

DTC B0029 (Flash Code 29) Passenger Pretensioner Squib Circuit High
Resistance

RTW 79ALF000301

Circuit Description
W hen the ignition switch is turne

Page 5723 of 6020

ISUZU KB P190 2007 Workshop Repair Manual RESTRAINT CONTROL SYSTEM 9A1-41

DTC Will Set When
The combined resistance of the passenger air
pretensioner assembly, harness wiring circuits
“Passenger Pretensioner High” and “Passenge
r

Page 5724 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 9A1-42 RESTRAINT CONTROL SYSTEM

DTC B0029 (Flash Code 29) Passenger Pretensioner Squib Circuit High Resistance

Step Action Yes No
1 W as the “SRS Diagnostic System Check” Performed?
G

9A1-42 RESTRAINT CONTROL SYSTEM

DTC B0029 (Flash Code 29) Passenger Pretensioner Squib Circuit High Resistance

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. Check the passenger pretensioner circuit for open.
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 passenger air bag assembly yellow connector
located at the base of the passenger seat.
Is the yellow connector connected properly? Go to Step 4 Seat passenger
pretensioner
assembly yellow connector properly.
Go to Step 7
4
1. Disconnect and inspect the passenger pretensioner assembly
yellow connector located at the base of the passenger seat.
2. If ok, reconnect the passenger pretensioner assembly
connector.
3. Ignition switch “ON”.
Is DTC B0029 current? Go to Step 5 Go to Step 7
5

1. Ignition switch is at “LOCK”.
2. Disconnect passenger pretensioner assembly, yellow
connector located at the base of the passenger seat.
3. Connect 5-8840-2421-0 SRS driver / passenger load tool and
appropriate adapters to passenger pretensioner assembly
harness connectors.
4. Ignition switch “ON”.
Is DTC B0029 Current? Go to Step 6 Ignition switch is at
“LOCK.”
Replace the passenger
pretensioner assembly.
Go to Step 7
6
1. Ignition switch is at “LOCK”.
2. There has been an increase in the total circuit resistance of
the passenger loop.
3. Use the high resolution ohmmeter mode of the DVM while
checking circuits “Pasenger Pretensioner High” and
“Passenger Pretensioner Low”, and SRS control unit
connector terminal “11” and “10” to locate the root cause.
W as a fault found? Replace SRS
harness or repair chassis harness. Go to Step 7 Go to Chart A
7

1. Reconnect all components ensure all component are properly
mounted.
2. Clear diagnostic trouble codes.
W as This step finished? Repeat the “SRS
Diagnostic System Check” ―

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TO MODEL INDEX
ISUZU KB P190 2007

Page 5725 of 6020

ISUZU KB P190 2007 Workshop Repair Manual RESTRAINT CONTROL SYSTEM 9A1-43

DTC B0031 (Flash Code 31) Passenger Pretensioner Squib Circuit Low
Resistance

RTW 79ALF000301

Circuit Description
W hen the ignition switch is turned

Page 5726 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 9A1-44 RESTRAINT CONTROL SYSTEM

DTC Will Set When
The combined resistance of the passenger pretensioner
assembly, harness wiring circuits “Passsenger
Pretensioner High” and “Passenger Prete

Page 5727 of 6020

ISUZU KB P190 2007 Workshop Repair Manual RESTRAINT CONTROL SYSTEM 9A1-45

DTC B0031 (Flash Code 31) Passenger Pretensioner Squib Circuit Low Resistance

Step Action Yes No
1 W as the “SRS Diagnostic System Check” performed?
Go

RESTRAINT CONTROL SYSTEM 9A1-45

DTC B0031 (Flash Code 31) Passenger Pretensioner Squib Circuit Low Resistance

Step Action Yes No
1 W as the “SRS Diagnostic System Check” performed?
Go to Step 2 Repeat the “SRS
Diagnostic System Check”
2
1. Check the passenger pretensioner squib circuit for short to
valtage or short to ground.
2. If the broblem 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 passenger air bag assembly yellow connector
located at the base of the passenger seat.
Is the yellow connector connected properly? Go to Step 4 Seat passenger
pretensioner
assembly yellow connector properly.
Go to Step 7
4
1. Disconnect and inspect the passenger air bag assembly
yellow connector located at the base of the passenger seat.
2. If ok, reconnect the passenger air bag assembly connector.
3. Ignition switch is at “ON”.
Is DTC B0031 Current? Go to Step 5 Go to Step 7
5

1. Ignition switch is at “LOCK”.
2. Disconnect SRS coil and passenger pretensioner assembly,
yellow connector located at the base of the passenger seat.
3. Connect 5-8840-2421-0 SRS driver/passenger load tool and
appropriate adapters to passenger pretensioner assembly
harness connectors.
4. Ignition switch is at “ON”.
Is DTC B0031 current? Go to Step 6 Ignition switch is at
“OFF”.
Replace the passenger
pretensioner assembly.
Go to Step 7
6
1. Ignition switch is at “LOCK”.
2. There has been a decrease in the total circuit resistance of
the passenger inflator deployment loop.
3. Use the high resolution ohmmeter mode of the DVM while checking circuits “Passenger pretensioner High” and
“Passenger Pretensioner Low”, and SRS control unit
connector terminal “11” and “10” to locate the root cause.
W as a fault found? Replace SRS
harness or repair chassis harness. Go to Step 7 Go to Chart A
7

1. Reconnect all components, ensure all component are
properly mounted.
2. Clear diagnostic trouble codes.
W as this step finished? Repeat the “SRS
Diagnostic System Check” ―

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

Page 5728 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 9A1-46 RESTRAINT CONTROL SYSTEM

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

RTW 79ALF000301

Circuit Description
W hen the ignition switch is turned

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