ISUZU KB P190 2007 Workshop Repair Manual

ANTITHEFT SYSTEM 11B-37
Diagnostic Trouble Code (DTC) List For Antitheft
DTC Description
13 Security code not yet programmed
14 No remote key programmed
16 Door lock actuators short circuit to ground
20 Broken wire to door lock actuators
21 Remote key 1 with random code out of capture range
22 Remote key 2 with random code out of capture range
23 Remote key 3 with random code out of capture range
24 Remote key 4 with random code out of capture range
25 Remote key 5 with random code out of capture range
28 Input immobilizer short circuit to ground
29 Broken wire to immobilizer
31 Actuator driver door defect
32 Actuator passenger door defect
36 Broken wire to driver door
37 Broken wire to passenger door
41 Driver door switch unlock defect
42 Driver door switch lock defect
43 Driver door switch dead lock defect
44 Passenger door switch lock defect
45 Passenger door switch unlock defect
47 Battery voltage for door lock actuators is missing
50 A/D converter defect or battery voltage less than 9 volt
51 EEPROM defect
52 EEPROM not programmed by ISUZU
55 Control unit defect
123 Output flasher short circuit to ground or broken wire
125 Output alarm horn broken wire



BACK TO CHAPTER INDEX TO MODEL INDEX
ISUZU KB P190 2007

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


BACK TO CHAPTER INDEX
TO MODEL INDEX
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 —


BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

11B-40 ANTITHEFT SYSTEM
DTC 13 Security Code not yet programmed
Step Action Value (s) Yes No
1 W as the Antitheft System Check performed?
— Go to Step 2 Go to
Antitheft
System Check
2 Check the key. Is a key peculiar to a vehicle? — Go to Step 3 Refer to
Diagnostic Aids
3 Check the Antitheft programming functions by Tech- 2.
• All transmitters (Remote Key).
If a problem is found, reprogramming as necessary.
(Refer to “Important information on Programming”)
W as the action complete? — Go to Step 4 Go to Step 5
4 Recheck the DTC.
1. Key position is “OFF” and keep the position for more than 30 seconds.
2. Key position is “ON”.
3. Check the DTC on Tech-2.
Is DTC 13 stored? — Go to Step 5 Verify repair
5
Recheck the DTC.
1. Non-OEM parts switch is “OFF” or remove the Non-OEM parts.
2. Remove the accessory and another key from key.
3. Move the vehicle to a new location.
4. Key position is “OFF” and keep the position for more than 30 seconds.
5. Key position is “ON”.
6. Check the DTC on Tech-2.
Is DTC 13 stored? — Go to Step 6 Verify repair
6 Replace the Antitheft control unit (ACU).
IMPORTANT: The replacement ACU must be
programmed the security data by the Tech-2.
Is DTC 13 stored? — Go to Step 7 Verify repair
7 Replace the key and lock cylinder assembly with
Antitheft system (ACU ).
IMPORTANT:
• ACU is not replacing simultaneously.
• After replace lock cylinders, perform the following
below the items.
• Replace the keys and key cylinders.
• Program the Antitheft system.
(Refer to “Important information on Programming”)
W as the action complete? — Verify repair —


BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

ANTITHEFT SYSTEM 11B-41
DTC 14 No Remote Key Programmed
Step Action Value (s) Yes No
1 W as the Antitheft System Check performed?
— Go to Step 2 Go to
antitheft
System Check
2 Check the key. Is a key peculiar to a vehicle? — Go to Step 3 Refer to
Diagnostic Aids
3 Check the antitheft programming functions.
• Transmitter (Remote Key).
W as a problem found? — Go to Step 4 Go to Step 5
4 Perform the antitheft programming functions.
• Transmitter (Remote Key).
(Refer to “Important information on Programming”)
W as the action complete? — Go to Step 5 —
5 Recheck the DTC.
1. Key position is “OFF” and keep the position for more than 30 seconds.
2. Key position is “ON”.
3. Check the DTC on the Tech-2.
Is DTC 14 stored? — Go to Step 6 Verify repair
6 Replace the transmitter (Remote Key).
IMPORTANT: The replacement transmitter (Remote
Key) must be programmed the security data by the
Tech-2.
W as the action complete? — Go to Step 7 —
7 Recheck the DTC.
1. Key position is “OFF” and keep the position for more than 30 seconds.
2. Key position is “ON”.
3. Check the DTC on the Tech-2.
Is DTC 14 stored? — Go to Step 8 Verify repair
8
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 —


BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

11B-42 ANTITHEFT SYSTEM
DTC 16 Door Lock Actuators Short Circuit to Ground
Step Action Value (s) Yes No
1 W as the Antitheft System Check performed?
— Go to Step 2 Go to
antitheft
System Check
2 Check the door lock actuators circuit.
1. Key position is “OFF”.
2. Disconnect the antitheft control unit (ACU).
3. Check the door lock actuator circuit for short to ground.
If the problem found, repair as necessary.
W as a problem found? — Verify repair Go to Step 3
3 Recheck the DTC.
1. Key position is “OFF” and keep the position for more than 30 seconds.
2. Key position is “ON”.
3. Check the DTC on the Tech-2.
Is DTC 16 stored? — Go to Step 4 Verify repair
4 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 —


BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

ANTITHEFT SYSTEM 11B-43
DTC 20 Broken wire to door lock actuators
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 20 stored? — Go to Step 3 Refer to
Diagnostic Aids
3 Check the door lock actuator circuit.
1. Key position is “OFF”.
2. Disconnect the antitheft control unit (ACU).
3. Disconnect the door lock motor.
4. Check the antitheft/door lock motor line circuit for an open, short to ground.
Also, check the ignition feed circuits for an open or short to ground and the ACU ground circuit for
an open.
W as a problem found? — Go to Step 4 Go to Step 5
4 Repair or replace the antitheft/door lock motor circuit.
W as the action complete? — Verify repair —
5 Replace the antitheft control unit (ACU).
IMPORTANT: The replacement ACU must be
programmed the security data by the tech2.
W as the action complete? — Verify repair —


BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

11B-44 ANTITHEFT SYSTEM
DTC 21 Remote Key 1 With Random Code Out Of Capture Range
Step Action Value (s) Yes No
1 W as the Antitheft System Check performed?
— Go to Step 2 Go to
antitheft
System Check
2 Check the key. Is a key peculiar to a vehicle? — Go to Step 3 Refer to
Diagnostic Aids
3 Check the antitheft programming functions to the peculiar key with the Tech-2
• Transmitter (Remote Key).
W as a problem found? — Go to Step 4 Go to Step 5
4 Perform the antitheft programming functions.
• Transmitter (Remote Key).
(Refer to “Important information on Programming”)
W as the action complete? — Go to Step 5 —
5 Recheck the DTC.
1. Key position is “OFF” and keep the position for more than 30 seconds.
2. Key position is “ON”.
3. Check the DTC on the Tech-2.
Is DTC 21 stored? — Go to Step 6 Verify repair
6 Replace the transmitter (Remote Key).
IMPORTANT: The replacement transmitter (Remote
Key) must be programmed the security data by Tech-
2.
W as the action complete? — Go to Step 7 —
7 Recheck the DTC.
1. Key position is “OFF” and keep the position for more than 30 seconds.
2. Key position is “ON”.
3. Check the DTC on the Tech-2.
Is DTC 21 stored? — Go to Step 8 Verify repair
8 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 —


BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

ANTITHEFT SYSTEM 11B-45
DTC 22 Remote Key 2 With Random Code Out Of Capture Range
Step Action Value (s) Yes No
1 W as the Antitheft System Check performed?
— Go to Step 2 Go to
antitheft
System Check
2 Check the key. Is a key peculiar to a vehicle? — Go to Step 3 Refer to
Diagnostic Aids
3 Check the antitheft programming functions to the peculiar key with the Tech-2
• Transmitter (Remote Key).
W as a problem found? — Go to Step 4 Go to Step 5
4 Perform the antitheft programming functions.
• Transmitter (Remote Key).
(Refer to “Important information on Programming")
W as the action complete? — Go to Step 5 —
5 Recheck the DTC.
1. Key position is “OFF“ and keep the position for more than 30 seconds.
2. Key position is “ON“.
3. Check the DTC on the Tech-2.
Is DTC 22 stored? — Go to Step 6 Verify repair
6 Replace the transmitter (Remote Key).
IMPORTANT: The replacement Transmitter (Remote
Key) must be programmed the security data by Tech-
2.
W as the action complete? — Go to Step 7 —
7 Recheck the DTC.
1. Key position is “OFF” and keep the position for more than 30 seconds.
2. Key position is “ON“.
3. Check the DTC on the Tech-2.
Is DTC 22 stored? — Go to Step 8 Verify repair
8 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 —


BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

11B-46 ANTITHEFT SYSTEM
DTC 23 Remote Key 3 With Random Code Out Of Capture Range
Step Action Value (s) Yes No
1 W as the Antitheft System Check performed?
— Go to Step 2 Go to
antitheft
System Check
2 Check the key. Is a key peculiar to a vehicle?
— Go to Step 3 Refer to
Diagnostic Aids
3 Check the antitheft programming functions to the peculiar key with the Tech-2
• Transmitter (Remote Key).
W as a problem found? — Go to Step 4 Go to Step 5
4 Perform the antitheft programming functions.
• Transmitter (Remote Key).
(Refer to “Important information on Programming”)
W as the action complete? — Go to Step 5 —
5 Recheck the DTC.
1. Key position is “OFF” and keep the position for more than 30 seconds.
2. Key position is “ON”.
3. Check the DTC on the Tech-2.
Is DTC 23 stored? — Go to Step 6 Verify repair
6 Replace the Transmitter (Remote Key).
IMPORTANT: The replacement Transmitter (Remote
Key) must be programmed the security data by Tech-
2.
W as the action complete? — Go to Step 7 —
7 Recheck the DTC.
1. Key position is “OFF” and keep the position for more than 30 seconds.
2. Key position is “ON”.
3. Check the DTC on the Tech-2.
Is DTC 23 stored? — Go to Step 8 Verify repair
8 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 —


BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007