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34–EBL MODE SWITCH STUCK (MTC) For a complete wiring diagram Refer to Section 8W. Theory of Operation The EBL mode switch input changes when the switch is pushed down. A stored DTC 34 indicates that the EBL • When Monitored: • Set Condition: Possible Causes OBJECT HOLDING EBL MODE SWITCH IN A PUSHED POSITION SUBSTANCE CAUSING EBL MODE SWITCH TO GET STUCK IN A PUSHED POSITION A/C HEATER CONTROL Diagnostic Test 1. INSPECT THE A/C HEATER CONTROL FOR DAMAGE Inspect the A/C Heater Control for damage. Is the A/C Heater Control damaged? Yes >> Replace the A/C Heater Control in accordance with the Service Information. Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL No >> Go To 2 2. INSPECT FOR OBJECT OR SUBSTANCE CAUSING THE EBL MODE SWITCH TO STAY OR STICK IN A Inspect the A/C Heater Control for anything that would cause the EBL mode switch to stay or stick in a pushed Is anything present that would cause the EBL mode switch to stay or stick in a pushed position? Yes >> Repair as necessary. Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL No >> Go To 3 24 - 34 HVAC - ELECTRICAL DIAGNOSTICS LX |