054CK--16
05--392
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DIAGNOSTICS
ENGINE IMMOBILIZER SYSTEM (1ND--TV)
COROLLA Supplement (RM1129E)
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of the problem symptom. The potential causes of the symp-
toms are listed in order of probability in the ”Suspected Area” column of the table. Check each symptom by
checking the suspected areas in the order they are listed. Replace parts as necessary.
Symptom
Suspected Area
See Page
Engine does not start
3. ECU power source circuit
S
ECU--B fuse
S
Wire harness
S
Transponder key ECU assy
4. IG circuit
S
IG2 fuse
S
AM2 fuse
S
Wire harness
S
Transponder key ECU assy
5. ECD system
Key is inserted into ignition key cylinder but code 11 is not output
(unlock warning switch circuit may be malfunctioning)
1. Unlock warning switch circuit
S
Unlock warning switch assy
S
Wire harness
S
Transponder key ECU assy
05--392
Driver side door is opened but code 12 is not output (front door
courtesy lamp switch assy circuit may be malfunctioning)
1. Front door courtesy lamp switch assy circuit
S
Front door courtesy lamp switch assy
S
Wire harness
S
Transponder key ECU assy
Ignition switch is ON but code 13 is not output (ignition or starter
switch assy circuit may be malfunctioning)
1. Ignition switch assy circuit
S
IG2 Fuse
S
Wire harness
S
Transponder key ECU assy
Master key is used to turn ignition switch ON but code 21 is not
output (transponder key amplifier circuit may be malfunctioning)
1. Master key
2. Transponder key amplifier circuit
S
Wire harness
S
Transponder key amplifier
S
Transponder key ECU assy
Sub--key is used to turn ignition switch ON but 22 is not output
(transponder key amplifier circuit may be malfunctioning)
1. Sub--key
2. Transponder key amplifier circuit
S
Wire harness
S
Transponder key amplifier
S
Transponder key ECU assy
Code 31 is output (unmatched key code)
Key
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Code 32 is output (no communication in immobilizer system)
1. Key
2. Wire harness
3. Transponder key amplifier
4. Transponder key ECU assy
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Code 33 is output (no communication in immobilizer system)
1. Key
2. Wire harness
3. Transponder key amplifier
4. Transponder key ECU assy
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Code 34 is output
Transponder key ECU has no memory space to register
key code
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TOYOTA COROLLA REPAIR MANUAL SUPP 1129E