2007 ISUZU KB P190 display

11B-38 ANTITHEFT SYSTEM
Antitheft System Check
Step Action Value (s) Yes No
1
1. Key position is “ACC”, shut all doors and bonnet.
2. Observe the antitheft lamp.
Note: W hen a key switch is “ACC”, antitheft lamp will
turn on and a antitheft lamp (LED) will be flashing
after 10 seconds.
Is the antitheft lamp "ON” or flashing? — Go to Step 2 Go to
“No antitheft lamp”
2
1. Key position is “ON”, engine “OFF”.
2. Observe the antitheft lamp.
3. Key position is turned “ACC”.
4. Check the antitheft lamp will be turned flashing and lamp will be turned ACC after 10 seconds.
Is the antitheft lamp flashing? — Go to
DTC table Go to Step 3
3
1. Key position is “OFF”.
2. Install the Tech-2.
3. Key position is “ON” or “OFF”.
4. Attempt to display antitheft data with the Tech-2.
Does the Tech-2 display antitheft data? — Go to Step 9 Go to Step 4
4
1. Key position is “OFF”, disconnect the antitheft
control unit (ACU).
2. Check the DLC (Data Link Connector) circuit for an open, short to ground, or short to voltage.
Also, check the DLC ignition feed circuit for an open
or short to ground and the DLC ground circuit for an
open.
W as a problem found? — Go to Step 5 Go to Step 6
5 Repair or replace the DLC (Data Link Connector)
circuit.
W as the action complete? — Go to Step 3 —
6
1 Check the ACU ground circuit for an open, or
short to voltage. Also, check the ACU ignition feed
circuit for an open or short to ground and the ACU
ground circuit for an open.
2 If a problem is found, repair as necessary.
W as the problem found? — Verify repair Go to Step 7
7
Replace the antitheft control unit (ACU).
IMPORTANT: The replacement ACU must be
programmed the antitheft data by Tech-2.
W as the action complete? — Go to Step 8 —
8 Select “Display DTCs” with the Tech-2.
Are any DTCs stored? — Go to applicable
DTC table —
9
1 Observe the antitheft data list on Tech-2.
2 If a problem is found, repair as necessary.
W as the problem found? — System OK Go to
applicable sectio n


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ISUZU KB P190 2007

ANTITHEFT SYSTEM 11B-39
No Antitheft Lamp
Step Action Value (s) Yes No
1 Check the fuse for the antitheft power feed circuit.
(10A)
If a problem found, repair as necessary.
W as the problem found?
Is the action complete? — Verify repair Go to Step 2
2
1. Check the ACU ground circuit for an open, or
short to voltage. Also, check the ACU ignition feed
circuit for an open or short to ground and the ACU
ground circuit for an open.
2. If a problem is found, repair as necessary.
W as the problem found? — Verify repair Go to Step 3
3
1. Check the antitheft lamp LED circuit for an open,
or short to voltage.
2. If a problem is found, repair as necessary.
W as the problem found? — Verify repair Go to Step 4
4
1. Key position is “OFF”.
2. Install the Tech-2.
3. Key position is “ACC” or “OFF”.
4. Observe to display lamp data with the Tech-2.
Does the Tech-2 display antitheft lamp data ON? — Go to Step 5 Go to Step 6
5 Replace the antitheft lamp. — Verify repair —
6 Replace the antitheft control unit (ACU).
IMPORTANT: The replacement ACU must be
programmed the antitheft data by Tech-2.
W as the action complete? — Verify repair —


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ISUZU KB P190 2007

ANTITHEFT SYSTEM 11B-51
DTC 31 Actuator Driver Door Defect
Step Action Value (s) Yes No
1 W as the Antitheft System Check performed?
— Go to Step 2 Go to
antitheft
System Check
2 Recheck the DTC.
1. Key position is “OFF”.
2. Install the Tech-2 on vehicle.
3. Key position is “ON”.
4. Check the DTC on the Tech-2.
Is DTC 31 stored? — Go to Step 3 Refer to
Diagnostic Aids
3 Check the driver door locking motor function.
1. Key position is “OFF”.
2. Install the Tech-2 on vehicle.
3. Key position is “OFF”.
4. Observe to display locking motor data with the Tech-2.
5. Turn ON by driver door lock.
Does the Tech-2 display ON voltage? — Go to Step 4 Go to Step 5
4
1. Key position is “OFF”.
2. Observe to display unlocking motor data with the Tech-2.
3. Turn OFF by driver door lock.
Does the Tech-2 display ON voltage? — Refer to
Diagnostic Aids, and then go to step 5 Go to Step 5
5
1. Check the driver door locking motor circuit for an
open, short to ground, or short to voltage.
Also, check the motor connector for damage.
2. If a problem found, repair as necessary.
W as the problem found? — Verify repair Go to Step 6
6
1. Repair or replace the driver door locking motor.
2. Check the DTC on the Tech-2.
Is DTC 31 stored? — Go to Step 7 Verify repair
7 Replace the antitheft control unit (ACU).
IMPORTANT: The replacement ACU must be
programmed the security data by the Tech-2.
W as the action complete? — Verify repair —


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ISUZU KB P190 2007

11B-52 ANTITHEFT SYSTEM
DTC 32 Actuator Passenger Door Defect
Step Action Value (s) Yes No
1 W as the Antitheft System Check performed?
— Go to Step 2 Go to
antitheft
System Check
2 Recheck the DTC.
1. Key position is “OFF”.
2. Install the Tech-2 on vehicle.
3. Key position is “ON”.
4. Check the DTC on the Tech-2.
Is DTC 32 stored? — Go to Step 3 Refer to
Diagnostic Aids
3 Check the passenger locking motor function.
1. Key position is “OFF”.
2. Install the Tech-2 on vehicle.
3. Key position is “OFF”.
4. Observe to display locking motor data with the Tech-2.
5. Turn ON by passenger door lock.
Does the Tech-2 display ON voltage? — Go to Step 4 Go to Step 5
4
1. Key position is “OFF”.
2. Observe to display unlocking motor data with the Tech-2.
3. Turn OFF by passenger door lock.
Does the Tech-2 display ON voltage? — Refer to
Diagnostic Aids ,
and then go to step 5 Go to Step 5
5
1. Check the passenger door locking motor circuit
for an open, short to ground, or short to voltage.
Also, check the motor connector for damage.
. If a problem found, repair as necessary.
W as the problem found? — Verify repair Go to Step 6
6
1. Repair or replace the passenger door locking
motor.
2. Check the DTC on the Tech-2.
Is DTC 32 stored? — Go to Step 7 Verify repair
7 Replace the antitheft control unit (ACU).
IMPORTANT: The replacement ACU must be
programmed the security data by the Tech-2.
W as the action complete? — Verify repair —


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ISUZU KB P190 2007

ANTITHEFT SYSTEM 11B-53
DTC 36 Broken Wire To Driver Door
Step Action Value (s) Yes No
1 W as the Antitheft System Check" performed?
— Go to Step 2 Go to
antitheft
System Check
2 Recheck the DTC.
1. Key position is “OFF”.
2. Install the Tech-2 on vehicle.
3. Key position is “ON”.
4. Check the DTC on the Tech-2.
Is DTC 36 stored? — Go to Step 3 Refer to
Diagnostic Aids
3 Check the driver door lock function.
1. Key position is “OFF”.
2. Install the Tech-2 on vehicle.
3. Key position is “OFF”.
4. Observe to display door lock data with the Tech-2.
5. Turn ON by driver door lock.
Does the Tech-2 display Closed? — Go to Step 4 Go to Step 5
4
1. Key position is “ON”.
2. Observe to display door lock data with the Tech-2.
3. Turn OFF by driver door lock.
Does the Tech-2 display Open ? — Refer to
Diagnostic Aids ,
and then go to step 5 Go to Step 5
5
1. Check the driver door lock circuit for an open,
short to ground, or short to voltage.
Also, check the motor connector for damage.
2. If a problem found, repair as necessary.
W as the problem found? — Verify repair Go to Step 6
6
1. Repair or replace the driver door lock.
2. Check the DTC on the Tech-2.
Is DTC 36 stored? — Go to Step 7 Verify repair
7 Replace the antitheft control unit (ACU).
IMPORTANT: The replacement ACU must be
programmed the security data by the Tech-2.
W as the action complete? — Verify repair —


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ISUZU KB P190 2007

11B-54 ANTITHEFT SYSTEM
DTC 37 Broken Wire To Passenger Door
Step Action Value (s) Yes No
1 W as the Antitheft System Check performed?
— Go to Step 2 Go to
antitheft
System Check
2 Recheck the DTC.
1. Key position is “OFF”.
2. Install the Tech-2 on vehicle.
3. Key position is “ON”.
4. Check the DTC on the Tech-2.
Is DTC 37 stored? — Go to Step 3 Refer to
Diagnostic Aids
3 Check the passenger door lock function.
1. Key position is “OFF”.
2. Install the Tech-2 on vehicle.
3. Key position is “OFF”.
4. Observe to display door lock data with the Tech-2.
5. Turn ON by passenger door lock.
Does the Tech-2 display Closed ? — Go to Step 4 Go to Step 5
4
1. Key position is “ON”.
2. Observe to display door lock data with the Tech-2.
3. Turn OFF by passenger door lock.
Does the Tech-2 display Open ? — Refer to
Diagnostic Aids ,
and then go to step 5 Go to Step 5
5
1. Check the passenger door lock circuit for an open,
short to ground, or short to voltage.
Also, check the motor connector for damage.
2. If a problem found, repair as necessary.
W as the problem found? — Verify repair Go to Step 6
6
1. Repair or replace the passenger door lock.
2. Check the DTC on the Tech-2.
Is DTC 37 stored? — Go to Step 7 Verify repair
7 Replace the antitheft control unit (ACU).
IMPORTANT: The replacement ACU must be
programmed the security data by the Tech-2.
W as the action complete? — Verify repair —


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ISUZU KB P190 2007

ANTITHEFT SYSTEM 11B-55
DTC 41 Driver Door Lock Switch Unlock Defect
Step Action Value (s) Yes No
1 W as the Antitheft System Check performed?
— Go to Step 2 Go to
antitheft
System Check
2 Recheck the DTC.
1. Key position is “OFF”.
2. Install the Tech-2 on vehicle.
3. Key position is “ON”.
4. Check the DTC on the Tech-2.
Is DTC 41 stored? — Go to Step 3 Refer to
Diagnostic Aids
3 Check the driver door lock function.
1. Key position is “OFF”.
2. Install the Tech-2 on vehicle.
3. Key position is “OFF”.
4. Observe to display door lock switch data with the Tech-2.
5. Turn ON by driver door lock.
Does the Tech-2 display Closed? — Go to Step 4 Go to Step 5
4
1. Key position is “OFF”.
2. Observe to display door lock data with the Tech-2.
3. Turn OFF by driver door lock.
Does the Tech-2 display Open ? — Refer to
Diagnostic Aids ,
and then go to step 5 Go to Step 5
5
1. Check the driver door lock switch circuit for an
open, short to ground, or short to voltage.
Also, check the door lock connector for damage.
2. If a problem found, repair as necessary.
W as the problem found? — Verify repair Go to Step 6
6
1. Repair or replace the driver door lock switch.
2. Check the DTC on the Tech-2.
Is DTC 41 stored? — Go to Step 7 Verify repair
7 Replace the antitheft control unit (ACU).
IMPORTANT: The replacement ACU must be
programmed the security data by the Tech-2.
W as the action complete? — Verify repair —


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ISUZU KB P190 2007

11B-56 ANTITHEFT SYSTEM
DTC 42 Driver Door Lock Switch lock Defect
Step Action Value (s) Yes No
1 W as the Antitheft System Check performed?
— Go to Step 2 Go to
antitheft
System Check
2 Recheck the DTC.
1. Key position is “OFF”.
2. Install the Tech-2 on vehicle.
3. Key position is “ON”.
4. Check the DTC on the Tech-2.
Is DTC 42 stored? — Go to Step 3 Refer to
Diagnostic Aids
3 Check the driver door lock function.
1. Key position is “OFF”.
2. Install the Tech-2 on vehicle.
3. Key position is “OFF”.
4. Observe to display door lock switch data with the Tech-2.
5. Turn ON by driver door lock.
Does the Tech-2 display Closed? — Go to Step 4 Go to Step 5
4
1. Key position is “OFF”.
2. Observe to display door lock data with the Tech-2.
3. Turn OFF by driver door lock.
Does the Tech-2 display Open ? — Refer to
Diagnostic Aids ,
and then go to step 5 Go to Step 5
5
1. Check the driver door lock switch circuit for an
open, short to ground, or short to voltage.
Also, check the door lock connector for damage.
2. If a problem found, repair as necessary.
W as the problem found? — Verify repair Go to Step 6
6
1. Repair or replace the driver door lock switch.
2. Check the DTC on the Tech-2.
Is DTC 42 stored? — Go to
Step 7 Verify repair
7 Replace the antitheft control unit (ACU).
IMPORTANT: The replacement ACU must be
programmed the security data by the Tech-2.
W as the action complete? — Verify repair —


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TO MODEL INDEX
ISUZU KB P190 2007