Without Keyless Access With Push Button Start System

CAUTION: When the body integrated unit (except for C0 and C5 models) or the immobilizer CM (C0 and C5 models) is replaced, registration of the immobilizer system is required. For details, refer to the "REGISTRATION MANUAL FOR IMMOBILIZER" provided as a separate volume.

CONFIRM NUMBER OF REGISTERED IMMOBILIZER KEY .
Confirm the number of registered immobilizer key. For details, refer to the "REGISTRATION MANUAL FOR IMMOBILIZER" provided as a separate volume.

Is the number of registration 0?

Yes: Register the immobilizer system.

No: Go to 2 .
CHECK SECURITY INDICATOR LIGHT .
1. Remove the ignition key from ignition switch.
2. Wait at least 60 seconds.
Does the security indicator light blink?

Yes: Go to 3 .

No: Check the security indicator light circuit. Ref. to IMMOBILIZER (DIAGNOSTICS)>Diagnostics Chart for Security Indicator Light>INSPECTION>CHECK SECURITY INDICATOR LIGHT CIRCUIT .
CHECK KEY SWITCH .
Insert the ignition key in the ignition switch. (OFF or ACC)

Does the security indicator light remain blinking?

Yes: Check the key switch circuit. Ref. to IMMOBILIZER (DIAGNOSTICS)>Diagnostics Chart for Security Indicator Light>INSPECTION>CHECK KEY SWITCH CIRCUIT .

No: Go to 4 .
CHECK SECURITY INDICATOR LIGHT .
Check the security indicator light status in the condition of step 3.

Does the security indicator light go off?

Yes: Go to 7 .

No: Go to 5 .
CHECK SECURITY INDICATOR LIGHT .
Turn the ignition switch to ON.

Does the security indicator light go off?

Yes: Go to 7 .

No: Go to 6 .
CHECK ENGINE START .
Turn the ignition switch to START.

Does the starter operate?

Yes: Check the LAN communication system. Ref. to LAN SYSTEM (DIAGNOSTICS)>BASIC DIAGNOSTIC PROCEDURE .

No: Go to 8 .
CHECK ENGINE START .
Turn the ignition switch to START.

Does the engine start?

Yes: Immobilizer system is normal.

No: Go to 9 .
CHECK DTC .
Read the DTC and time stamp of the system(s) below. Ref. to IMMOBILIZER (DIAGNOSTICS)>Read Diagnostic Trouble Code (DTC) .

NOTE: For time stamp, refer to "LAN SYSTEM". Ref. to LAN SYSTEM (DIAGNOSTICS)>GENERAL DESCRIPTION>CAUTION>TIME STAMP .
- Body integrated unit (except for C0 and C5 models)
- Immobilizer CM (C0 and C5 models)
Are any DTCs displayed?

Yes: Go to 10 .

No: Replace the body integrated unit (except for C0 and C5 models) or the immobilizer CM (C0 and C5 models). Ref. to SECURITY AND LOCKS>BODY INTEGRATED UNIT .
CHECK DTC .
Read the DTC and time stamp of the system(s) below. Ref. to IMMOBILIZER (DIAGNOSTICS)>Read Diagnostic Trouble Code (DTC) .

NOTE: For time stamp, refer to "LAN SYSTEM". Ref. to LAN SYSTEM (DIAGNOSTICS)>GENERAL DESCRIPTION>CAUTION>TIME STAMP .
- ECM
Are any DTCs displayed?

Yes: Go to 10 .

No: Perform the diagnosis for engine system. Ref. to ENGINE (DIAGNOSTICS) (H4DO)>BASIC DIAGNOSTIC PROCEDURE>PROCEDURE . Ref. to ENGINE (DIAGNOSTICS) (H6DO)>BASIC DIAGNOSTIC PROCEDURE>PROCEDURE .
CHECK FREEZE FRAME DATA .
Check the freeze frame data.

Are the data recorded?

Yes: Record the data. Go to 11 .

No: Go to 11 .
CHECK DTC .
Check the displayed DTC.

Are DTCs irrelevant to the immobilizer displayed?

Yes: Perform the diagnosis according to DTCs irrelevant to the immobilizer first.

No: Go to 12 .
PERFORM DIAGNOSIS .
1. Inspect using the "Diagnostic Procedure with Diagnostic Trouble Code (DTC)". Ref. to IMMOBILIZER (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC) .
2. Repair the trouble cause.
3. Perform the Clear Memory Mode. Ref. to IMMOBILIZER DIAGNOSTICS)>CLEAR MEMORY MODE .
4. Read DTCs again. Ref. to IMMOBILIZER (DIAGNOSTICS)>Read Diagnostic Trouble Code (DTC) .
Are any DTCs displayed?

Yes: Inspect using the "Diagnostic Procedure with Diagnostic Trouble Code (DTC)". Ref. to IMMOBILIZER (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC) .

No: Finish the diagnosis.