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Home >> Chrysler >> 2003 >> Sebring Coupe V6-3.0L VIN H >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Information Bus >> Testing and Inspection >> Diagnosis By Symptom >> Symptom Procedures >> Inspection Procedure N-2

Inspection Procedure N-2


INSPECTION PROCEDURE N-2: Theft-alarm system: Horn does not sound when the theft-alarm is triggered.















CIRCUIT OPERATION
The ETACS-ECU will sound the theft-alarm horn and horn if the theft-alarm system or the keyless entry system answerback is triggered.

TECHNICAL DESCRIPTION (COMMENT)
The theft-alarm horn is shared by the keyless entry system. If the theft-alarm horn sounds normally through the keyless entry system answerback, the ETACS-ECU may be defective.

TROUBLESHOOTING HINTS
- The theft-alarm horn may be defective
- The theft-alarm horn relay may be defective
- The ETACS-ECU may be defective
- The wiring harness or connectors may have loose, corroded, or damaged terminals, or terminals pushed back in the connector

DIAGNOSIS
Required Special Tool:
- MB991223: Test Harness Set

STEP 1. Verify the keyless entry system horn answerback.
Activate the keyless entry system horn answerback. (Refer to Keyless Entry System - On-vehicle Service -Enabling/disabling the Answerback Function.)

Q: Does the horn answerback function work?

YES : Replace the ETACS-ECU. The horn should sound when the theft-alarm system is triggered.

NO : Go to Step 2.




STEP 2. Check the theft-alarm horn.
Connect the battery as shown and check that the theft-alarm horn sounds.

Q: Is the theft-alarm horn in good condition?

YES : Go to Step 3.

NO : Replace it. The horn should sound when the theft-alarm system is triggered.










STEP 3. Check the theft-alarm horn relay.

Q: Is the theft-alarm horn relay in good condition?

YES : Go to Step 4.

NO : Replace it. The horn should sound when the theft-alarm system is triggered.

STEP 4. Check the theft-alarm horn relay power supply circuit at the theft-alarm horn relay connector A-06X.




1. Disconnect the theft-alarm horn relay connector A-06X and measure at the relay box side.




2. Measure the voltages between terminals 1, 2 and ground.
- The voltage should equal approximately 12 volts(battery positive voltage).

Q: Is the measured voltage approximately 12 volts (battery positive voltage)?

YES : Go to Step 7.

NO : Go to Step 5.




STEP 5. Check the theft-alarm horn relay connector A-06X for loose, corroded or damaged terminals, or terminals pushed back in the connector.

Q: Is theft-alarm horn relay connector A-06X in good condition?

YES : Go to Step 6.

NO : Repair or replace the damaged components). Refer to Harness Connector Inspection. Diagnostic AidsThe theft-alarm horn should sound when the theft-alarm system is triggered.




STEP 6. Check the wiring harness between theft-alarm horn relay connector A-06X (terminal 1 and 2) and fusible link (4).

Q: Are the wiring harness between theft-alarm horn relay connector A-06X (terminal land 2) and fusible link (4) in good condition?

YES : No action is necessary and testing is complete.

NO : The wiring harness may be damaged or the connector(s) may have loose, corroded or damaged terminals, or terminals pushed back in the connector. Repair the wiring harness as necessary. The horn should sound when the theft-alarm system is triggered.







STEP 7. Check the theft-alarm horn relay connector A-06X and ETACS-ECU connector C-317 for loose, corroded or damaged terminals, or terminals pushed back in the connector.

Q: Are theft-alarm horn relay connector A-06X and ETACS-ECU connector C-317 in good condition?

YES : Go to Step 8.

NO : Repair or replace the damaged component(s). Refer to Harness Connector Inspection. Diagnostic AidsThe horn should sound when the theft-alarm system is triggered.










STEP 8. Check the wiring harness between theft-alarm horn relay connector A-06X (terminal 3) and ETACS-ECU connector C-317 (terminal 40).

NOTE: Also check intermediate connector C-209 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If intermediate connector C-209 is damaged, repair or replace it. Refer to Harness Connector Inspection.

Q: Are the wiring harness between theft-alarm horn relay connector A-06X (terminal 3) and ETACS-ECU connector C-317 (terminal 40)in good condition?

YES : Go to Step 9.

NO : The wiring harness may be damaged or the connector(s) may have loose, corroded or damaged terminals, or terminals pushed back in the connector. Repair the wiring harness as necessary. The horn should sound when the theft-alarm system is triggered.

2003-2004 Models

STEP 8. Check the wiring harness between theft-alarm horn relay connector A-06X and ETACS-ECU connector C-317.

NOTE: Also check intermediate connector C-209 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If intermediate connector C-209 is damaged, repair or replace it. Refer to Harness Connector Inspection.

Q: Are the wiring harness between theft-alarm horn relay connector A-06X (terminal 3) and ETACS-ECU connector C-317 (terminal 40) in good condition?

YES : Go to Step 9.

NO : The wiring harness may be damaged or the connector(s) may have loose, corroded or damaged terminals, or terminals pushed back in the connector. Repair the wiring harness as necessary. The horn should sound when the theft-alarm system is triggered.

2002 Model










STEP 9. Check the theft-alarm horn relay connector A-06X and theft-alarm horn connector A-25 for loose, corroded or damaged terminals, or terminals pushed back in the connector.

Q: Are theft-alarm horn relay connector A-06X and theft-alarm horn connector A-25 in good condition?

YES : Go to Step 10.

NO : Repair or replace the damaged component(s). Refer to Harness Connector Inspection. Diagnostic AidsThe horn should sound when the theft-alarm system is triggered.










STEP 10. Check the wiring harness between theft-alarm horn relay connector A-06X (terminal 4) and theft-alarm horn connector A-25 (terminal 1).

Q: Is the wiring harness between horn relay connector A-06X (terminal 4) and theft-alarm horn connector A-25 (terminal 1) in good
condition?

YES: Go to Step 11.

NO : The wiring harness may be damaged or the connector(s) may have loose, corroded or damaged , terminals, or terminals pushed back in the connector. Repair the wiring harness as necessary. The theft-alarm horn should sound when the theft-alarm system is triggered.

2003-2004 Models










STEP 10. Check the wiring harness between theft-alarm horn relay connector A-06X and theft-alarm horn connector A-25.

Q: Is the wiring harness between horn relay connector A-06X and theft-alarm horn connector A-25 in good
condition?

YES: Go to Step 11.

NO : The wiring harness may be damaged or the connector(s) may have loose, corroded or damaged , terminals, or terminals pushed back in the connector. Repair the wiring harness as necessary. The theft-alarm horn should sound when the theft-alarm system is triggered.

2002Models

STEP 11. Check that the theft-alarm horn is installed properly.

NOTE: The theft-alarm horn is grounded to the body through the installation bolts.

Q: Is the theft-alarm horn installation in good condition?

YES : Replace the ETACS-ECU. The horn should sound when the theft-alarm system is triggered.

NO : The wiring harness may be damaged or the connector(s) may have loose, corroded or damaged terminals, or terminals pushed back in the connector. Repair the wiring harness as necessary. The horn should sound when the theft-alarm system is triggered.
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