dodge Workshop Repair Guides

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Hazard Warning Light Switch Input Circuit

CIRCUIT OPERATION

The ETACS-ECU operates various functions according to the input signal from the hazard warning light switch.

TECHNICAL DESCRIPTION (COMMENT)

Hazard warning light switch input signal is used to operate the following device or system:

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Hazard warning light

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Keyless entry system (registering the encrypted code)

If the signal fails, these device or system will not work normally.

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

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