Stratus Coupe V6-3.0L VIN H (2001)
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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 turn-signal lights should flash normally.
NO: Check the relevant input signal circuit.
Inspection Procedure K-2
Flasher timer: Hazard warning lights does not flash when the hazard warning light switch is turned on.
Turn-signal Light Drive Circuit
Refer to Inspection Procedure K-1.
CIRCUIT OPERATION
If the ETACS-ECU receives a signal from the hazard warning light switch, the flasher timer circuit (which is incorporated in the ETACS-ECU) makes
the turn-signal lights flash.
TECHNICAL DESCRIPTION (COMMENT)
The ETACS-ECU makes the turn-signal lights flash, based on the input signals from the hazard warning light switch. If the turn-signal lights do not flash
normally, the hazard warning light switch input circuit or the ETACS-ECU may be defective.
If the turn-signal lights do not flash, a defect in the ETACS-ECU power supply line specific to the turn signal lights is suspected.
NOTE: If only one of the turn-signal lights does not flash, the light bulb may be burned out or the harness wires between the ETACS-ECU and the light
may be defective. In this case, check the circuit by referring to Turn-signal Light and Hazard Warning Light.
TROUBLESHOOTING HINTS
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Malfunction of the hazard warning light switch
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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)
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MB991529: Diagnostic Trouble Code Check Harness
STEP 1. Check the turn-signal light operation.
Q: Do the turn-signal lights work normally?
YES: Go to Step 2 <when using scan tool MB991502> or 3 <when using a voltmeter>.
NO: Solve the problem first. Refer to Inspection Procedure K-1.
STEP 2. Check the input signal (by using scan tool MB991502).
Check the input signals from the hazard warning light switch.