Lancer LS L4-2.0L SOHC (2002)
STEP 20. Check the wiring harness between horn relay connector A-05X and ETACS-ECU connector C-227.
NOTE: Also check intermediate connector C-129 and joint connector C-101. If intermediate connector C-129 or joint connector C-101 is damaged,
repair or replace the connector as described in Harness Connector Inspection.
Q: Is the wiring harness between horn relay connector A-05X and ETACS-ECU connector C-227 in good condition?
YES: Replace the ETACS-ECU. Check that the horn sounds normally.
NO: Repair the wiring harness. Check that the horn sounds normally.
Inspection Procedure E-3
Keyless Entry System: Encrypted Code cannot be Registered
Encrypted Transmitter Code Register Mode
CIRCUIT OPERATION
The ETACS-ECU operates the encrypted code register mode according to the following signals:
-
Key reminder switch
-
Hazard warning light switch
TECHNICAL DESCRIPTION (COMMENT)
Is the encrypted code register mode can not be set, the input circuits from the switches described in "CIRCUIT OPERATION" or the ETACS-ECU may
be defective.
If the encrypted code register mode can be set but the transmitter can not be registered, the transmitter or the ETACS-ECU may be defective.
TROUBLESHOOTING HINTS
-
Malfunction of the key reminder switch
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Malfunction of the hazard warning light switch
-Malfunction of the transmitter
-
Malfunction of the ETACS-ECU
-
Damaged harness wires or connectors
DIAGNOSIS
Required Special Tools:
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MB991223: Test Harness Set
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MB991502: Scan Tool (MUT-II)