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THEFT ALARM TSB Revision CHASSIS ELECTRICAL 54-267 DIAGNOSIS Required Special Tools: • MB991223: Test Harness Set • MB991958: Scan Tool (MUT-III Sub Assembly) • MB991824: Vehicle Communication Interface (V.C.I.) • MB991827: MUT-III USB Cable • MB991911: MUT-III Main Harness B (Vehicles without CAN communication system) • MB991529: Diagnostic Trouble Code Check Harness STEP 1. Check the ETACS-ECU power supply circuit. Do all of the following functions work when the ignition switch is • Ignition key reminder tone alarm function • Light reminder tone alarm function • Central door locking system • Hazard warning light • Dome light dimming function • Power window timer function Q: Do any of the functions work? YES : Go to Step 2. Inspection Procedure 6. STEP 2. Check the security indicator circuit at the (1) Disconnect the ETACS-ECU connector D-26 and measure at the harness side. (2) Connect terminal 32 to the ground. YES : Go to Step 8. AC201902 1 2 8 7 4 10 5 11 12 6 9 3 CONNECTOR: D-26 AB COMPONENT SIDE JUNCTION BLOCK (REAR) 21 22 23 24 25 26 27 28 29 30 31 32 D-26 (B) 21 22 23 24 25 26 27 28 29 30 31 32 AC003844 D-26 HARNESS CONNECTOR: AC |