- Customer states that the turn signals, head lights, dome lights, fog lights and all wiper blade controls are inoperable resulting in the headlights and wiper blades remaining in the on position. Verified this concern upon turning the key to the on position. Using APOLLO D8 scan tool I found active DTC U1149 LOST COMMUNICATION WITH MULTI-FUNCTIOIN SWITCH. Steering column covers have to be removed in order to gain access to multi-function switches. With the vehicle in the on position I used a power probe multi-meter to check for ground and voltage. I verified that there is voltage and ground present in the multi-function switch. Disconnected Multi-function switch and checked for ground and proper voltage at the connector. I verified that the connector is receiving proper voltage and ground. Results of the tests verified that the multi-function switch is faulty. R&R combination/ multi-function switch and cleared codes. Vehicle now has full operation of all high beams, low beams, fog lights, turn signals, dome lights and all wiper blade controls.
Kim S. gave our service a 5 star review on 3/3/2022