Stratus Coupe L4-2.4L VIN G (2003)
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:
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The voltmeter needle does not fluctuate when the ignition switch is turned from "ACC" to "ON": Refer to Inspection Procedure O-2 "The
ignition switch (IG1) signal is not sent to the ETACS-ECU." See: Diagnosis By Symptom/Symptom Procedures/Inspection Procedure O-2
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The voltmeter needle does not fluctuate when the driver's door is opened: Refer to Inspection Procedure O-8 "The driver's or passenger's
door switch signal is not sent to the ETACS-ECU." See: Diagnosis By Symptom/Symptom Procedures/Inspection Procedure O-8
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The voltmeter needle does not fluctuate when the lighting switch is turned from "OFF" to "TAIL":Refer to Inspection Procedure O-15
"The taillight switch signal is not sent to the ETACS-ECU." See: Diagnosis By Symptom/Symptom Procedures/Inspection Procedure O-15
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The voltmeter needle does not fluctuate when the lighting switch is turned from "TAIL" to "HEAD":Refer to Inspection Procedure O-15
"The headlight switch signal is not sent to the ETACS-ECU." See: Diagnosis By Symptom/Symptom Procedures/Inspection Procedure
O-15
Inspection Procedure B-3
INSPECTION PROCEDURE B-3: Tone alarm: Door ajar tone alarm function does not work normally.
TECHNICAL DESCRIPTION (COMMENT)
The ETACS-ECU operates the door ajar tone alarm function, based on input signals from the following switches and the front-ECU:
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Ignition switch (IG1)
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Driver's and passenger's door switches
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Trunk lid latch switch
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Speed sensor
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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The driver's and passenger's door switches may be defective
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The trunk lid latch switch may be defective
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The speed sensor may be defective
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The ETACS-ECU may be defective
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The wiring harness or connectors may have loose, corroded, or damaged terminals, or terminals pushed back in the connector
DIAGNOSIS
Required Special Tools:
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MB991223: Test Harness Set
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MB991502: Scan Tool (MUT-II)
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MB991529: Diagnostic Trouble Code Check Harness
STEP 1. Verify the method of the input 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 and passenger's door switches
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Trunk lid latch switch
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Speed sensor
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.
