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INPUT SIGNAL PROCEDURES TSB Revision SIMPLIFIED WIRING SYSTEM (SWS) 54B-519 TECHNICAL DESCRIPTION (COMMENT) . TROUBLESHOOTING HINTS • The key reminder switch may be defective • The wiring harness or connectors may have loose, corroded, or damaged terminals, or termi- • The ETACS-ECU may be defective DIAGNOSIS Required Special Tool: • MB991223: Harness Set STEP 1. Check key reminder switch connector C-310 for Q: Is key reminder switch connector C-310 in good condition? to GROUP 00E, Harness Connector Inspection . If the functions described in "CIRCUIT OPERATION" work normally, the input signal from the STEP 2. Check the key reminder switch. Disconnect key reminder switch connector C-310. Then check Q: Is the key reminder switch in good condition? YES : Go to Step 3. described in "CIRCUIT OPERATION" work normally, AC305235AF CONNECTOR: C-310 HARNESS SIDE IGNITION KEY TESTER SPECIFIED Removed 4 − 6 Open circuit Inserted 4 − 6 Less than 2 ohms AC305235AF CONNECTOR: C-310 HARNESS SIDE |