11B-60 ANTITHEFT SYSTEM
DTC 47 Battery Voltage For Door Lock Actuators Is Missing
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 47 stored? — Go to Step 3 Refer to
Diagnostic Aids
3 Check the antilock system voltage.
1. Key position is “OFF”.
2. Install the Tech-2 on vehicle.
3. Key position is “ON”.
4. Observe to display system voltage data with the Tech-2.
Is the voltage near the specified value ? — Go to Step 5 Go to Step 4
4
1. Key position is “OFF”.
2. Check the battery voltage.
3. If a problem found, repair as necessary. (Chage battery)
W as the problem found? — Verify repair Refer to
Diagnostic Aids
5 Check the door lock motor output voltage.
1. Key position is “OFF”.
2. Connect a digital volt meter to measure voltage.
between ACU terminal 7 and body ground.
3. Key position is “ON”.
4. Observe to display voltage with the DVM.
5. Door lock ON.
Is the voltage near the specified value ? — Go to Step 6 Go to Step 7
6
1. Check the door lock motor circuit for an open,
short to ground, or short to voltage.
Also, check the door lock motor connector for damage.
2. If a problem found, repair as necessary.
W as the problem found? — 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 —
BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007
ANTITHEFT SYSTEM 11B-61
DTC 50 A/D Converter Defect Or Battery Voltage Less Than 9 Volt
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 50 stored? — Go to Step 3 Refer to
Diagnostic Aids
3 Check the antilock system voltage.
1. Key position is “OFF”.
2. Install the Tech-2 on vehicle.
3. Key position is “ON”.
4. Observe to display system voltage data with the Tech-2.
Is the voltage near the specified value ? — Go to Step 6 Go to Step 4
4
1. Key position is “OFF”.
2. Check the battery voltage.
3. If a problem found, repair as necessary. (Chage battery)
W as the problem found? — Verify repair Go to Step 5
5
1. Check the ignition feed circuit for an open, short to
ground.
Also, check the ACU ground circuit for damage.
2. If a problem found, repair as necessary.
W as the problem found? — Verify repair Refer to
Diagnostic Aids
6 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
