Eclipse Spyder GS L4-2350cc 2.4L SOHC MFI (2001)
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Headlight switch
1. Use special tool MB991529 to connect a voltmeter between ground terminal 4 or 5 and ETACS-ECU terminal 9 of the data link connector.
2. Check that the voltmeter indicator deflects once when the input signal enters.
Q: Does the voltmeter indicator deflect?
YES: Replace the ETACS-ECU. The light reminder tone alarm function should work normally.
NO: Check the relevant input circuit.
Inspection Procedure B-5
Tone Alarm: Seat Belt Tone Alarm Function Does Not Work Normally
TECHNICAL DESCRIPTION (COMMENT)
The ETACS-ECU operates the seat belt tone alarm function, based on input signals from the following switches:
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Ignition switch (IG1)
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Driver's seat belt switch
If the function does not work normally, a defect on the relevant circuit or the ETACS-ECU may be suspected.
TROUBLESHOOTING HINTS
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Malfunction of the driver's seat belt switch
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Malfunction of the ETACS-ECU
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Damaged harness wires or
DIAGNOSIS
Required Special Tools:
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MB991502: Scan Tool (MUT-II)
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MB991529: Diagnostic Trouble Code Check Harness
STEP 1. Check method of the in put signal
Q: Which is to be used, the scan tool or the voltmeter to check the input signal?
Scan tool MB991502 : Go to Step 2.
Voltmeter: Go to Step 3.
STEP 2. Check the input signal (by using scan tool MB991502).
Check the input signals from the following switches:
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Ignition switch (IG1)
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Driver's seat belt 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.
