Eclipse V6-3.0L SOHC (2003)
NO: Replace the front-ECU. The headlights should flash at high beam when the theft-alarm system is triggered.
Inspection Procedure N-4
Theft-alarm System: Panic Alarm Function Does Not Work.
TECHNICAL DESCRIPTION (COMMENT)
If the keyless entry system is normal, the ETACS-ECU may be defective.
TROUBLESHOOTING HINTS
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Malfunction of the ETACS-ECU
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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)
STEP 1. Check the keyless entry system.
Q: Does the keyless entry system work normally?
YES: Go to Step 2.
NO: Refer to Inspection Procedure E-1 "Keyless entry system does not operate."
STEP 2. Check the input signal (by using the Pulse check).
Check the input signals from the transmitter "PANIC" switch:
CAUTION: To prevent damage to scan tool MB991502, always turn the ignition switch to the "LOCK" (OFF) position before connecting or
disconnecting scan tool MB991502.
1. Connect scan tool MB991502 to the data link connector.
2. Operate the MUT-II according to the procedure below to display "PULSE CHECK."
1. Select "SYSTEM SELECT."
2. Select "SWS."
3. Select "PULSE CHECK."
3. Check that scan tool MB991502 sounds.
Q: Does scan tool MB991502 sound when the transmitter "PANIC" switch is operated?
YES: Replace the ETACS-ECU. Check that the panic alarm works normally.
NO: Refer to Inspection Procedure P-13 "The ETACS-ECU does not receive signal from lock, unlock, trunk or panic switch.
Inspection Procedure O-1
The ETACS-ECU Does Not Receive Any Signal From The Ignition Switch (ACC).
