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ANTITHEFT SYSTEM 11B – 63
DTC 55 Control unit defect
Step Action Value (s) Yes No
1
2
3Was the Antitheft System Check
performed?
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 scan tool.
Is DTC 55 stored?
Replace the antitheft control unit (ACU).
IMPORTANT:The replacement ACU must be
programmed the security data by the tech2.
Was the action complete?—
—
—Go to Step 2
Go to Step 3
Verify repairGo to antitheft
System Check
Verify repair
—
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11B – 64 ANTITHEFT SYSTEM
DTC 123 Output flasher short circit to ground or broken wire
Step Action Value (s) Yes No
1
2
3
4
5Was the Antitheft System Check
performed?
Recheck the DTC.
1. Key position is “OFF”.
2. Install the tech2 on vehicle.
3. Key position is “ON”.
4. Check the DTC on the tech2.
Is DTC 123 stored?
1. Check the flasher circuit for an open, short to
ground, or short to voltage.
Also, check the flasher connector for damage.
2. If a problem found, repair as necessary.
Was the problem found?
Check the flasher function.
1. Key position is “OFF”.
2. Connect a jamper wire between ACU terminal
28 and body ground.
3. Key position is “ON”.
4. Observe to operate flasher lamp.
If the problem found about the flasher lamp
circuit, repair as necessary.
Was the problem found?
Replace the antitheft control unit (ACU).
IMPORTANT:The replacement ACU must be
programmed the security data by the tech2.
Was the action complete?—
—
—
—
—Go to Step 2
Go to Step 3
Verify repair
Verify repair
Verify repairGo to antitheft
System Check
Refer to
Diagnostic Aids
Go to Step 4
Go to Step 5
—
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ANTITHEFT SYSTEM 11B – 65
DTC 125 Output Alarm Horn Broken Wire
Step Action Value (s) Yes No
1
2
3
4
5Was the Antitheft System Check
performed?
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?
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.
Was the problem found?
Check the alarm horn function.
1. Key position is “OFF”.
2. Connect a jamper 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.
Was the problem found?
Replace the antitheft control unit (ACU).
IMPORTANT:The replacement ACU must be
programmed the security data by the Tech-2.
Was the action complete?—
—
—
—
—Go to Step 2
Go to Step 3
Verify repair
Verify repair
Verify repairGo to antitheft
System Check
Refer to
Diagnostic Aids
Go to Step 4
Go to Step 5
—
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WORKSHOP MANUAL
TF SERIES
STEERING SUSPENSION,
WHELLS AND TIRES
SECTION 3
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