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STEP 3. Measure at the lower metal part of the rear door NOTE: Check that the rear door switch (LH) is grounded to the vehicle body by means of its mounting screw. ⦆ The resistance should equal 2 ohms or less. Q:Is the measured resistance 2 ohms or less? YES: Go to Step 4. NO: Check the fit of the switch, and repair if necessary. Check that the input signal of rear door switch (LH) is STEP 4. Check ETACS-ECU connector C-313 for loose, Q:Is ETACS-ECU connector C-313 in good condition? YES: Go to Step 5. NO: Repair or replace the damaged component(s). Refer to GROUP 00E, Harness Connector Inspection P.00E-2. Check STEP 5. Check the wiring harness between driver's door Q:Is the wiring harness between rear door switch connector D-17 (terminal 3) and ETACS-ECU connector C-313 (terminal 7) in good condition? YES: Replace the ETACS-ECU. Check that the input signal of rear door switch (LH) is normal. NO: The wiring harness may be damaged or the connector (s) may have loose, corroded or damaged terminals, or ETACS 54Ad-79 DIAGNOSIS |