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-66 ANTITHEFT SYSTEM
DTC 125 Output Alarm Horn Broken Wire
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 125 stored? — Go to Step 3 Refer to
Diagnostic Aids
3 1. Check the alarm horn circuit for an open, short to
ground, or short to voltage.
Also, check the alarm horn connector for damage.
2. If a problem found, repair as necessary.
W as the problem found? — Verify repair Go to Step 4
4 Check the alarm horn function.
1. Key position is “OFF”.
2. Connect a jumper wire between ACU terminal 5 and body ground.
3. Key position is “ON”.
4. Observe to operate sound with the alarm horn.
If the problem found about the alarm horn, replace as
necessary.
W as the problem found? — Verify repair Go to Step 5
5 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
