CUSTOMER CONCERN After front-end collision repair, the air conditioning does not operate, DTC P0073 is stored, and ambient-temperature data remains fixed at 69°F with a 5-volt signal. CAUSE Rodent damage behind the front bumper chewed through the wiring harness leading to the ambient-air-temperature sensor. CORRECTION Repair the damaged ambient-air-temperature sensor wiring behind the front bumper, clear DTC P0073, and verify the temperature signal changes normally and A/C op

CUSTOMER CONCERN The engine misfires, lacks power, and may stall. The condition can occur with or without cylinder-misfire or lean DTCs. CAUSE The confirmed repair identified failed ignition coils and worn spark plugs as the source of the misfire and drivability symptoms. CORRECTION Remove and replace the failed ignition coils and spark plugs, clear any stored misfire DTCs, and road test to verify normal power and idle quality.

CUSTOMER CONCERN The vehicle intermittently brakes on its own while driving, with audible ABS activation. DTCs U2107, U0401, and U0415 may be stored, although the symptom can occur without codes. CAUSE The right-front ABS tone ring in the hub and bearing assembly was warped, producing an incorrect wheel-speed signal and unintended ABS intervention. CORRECTION Remove and replace the right-front hub and bearing assembly, clear DTCs U2107, U0401, and U0415, and verify the ABS no

CUSTOMER CONCERN The fuel door will not open. CAUSE The fuel-door release switch connector was damaged, interrupting operation of the release system. CORRECTION Remove and replace the damaged fuel-door release switch connector and verify normal fuel-door release operation.

CUSTOMER CONCERN The transmission will not shift out of Park, the dash displays an Automatic Shift Fault warning, and DTCs U019E and U101F reset after clearing. CAUSE The Transmission Range Control Module did not communicate with multiple scan tools while all other modules remained accessible. Circuit checks supported a failed TRCM, and the exact-vehicle confirmed repair replaced the module. CORRECTION Remove and replace the failed Transmission Range Control Module, adjust th

CUSTOMER CONCERN The check-engine light is on and DTC P2418 resets as soon as the engine starts. CAUSE The confirmed repair identified an internally failed fuel vapor valve in the vapor-tube assembly. CORRECTION Remove and replace the fuel vapor valve and vapor-tube assembly, clear P2418, and verify the EVAP valve circuit operates normally.

CUSTOMER CONCERN The check-engine light is on and DTC P0442 is stored. CAUSE Smoke testing confirmed an EVAP leak at the capless fuel-filler-neck flap. CORRECTION Remove and replace the fuel filler neck, clear P0442, and verify the EVAP system seals correctly.

CUSTOMER CONCERN The engine overheats after collision-related radiator replacement and stores DTC P1285. CAUSE The confirmed repair identified a failed engine water pump; multiple exact-vehicle fixes replaced the pump for this overheating condition. CORRECTION Remove and replace the engine water pump, refill and bleed the cooling system, clear P1285, and verify normal engine temperature.

CUSTOMER CONCERN The engine runs very poorly after air-filter service, pings under load, remains in open loop, and stores lean and misfire DTCs. CAUSE Inspection confirmed debris contamination on the mass-airflow sensor element, causing incorrect airflow measurement and the lean misfire. CORRECTION Clean the mass-airflow sensor element and air-filter housing, clear the DTCs, and verify closed-loop operation and normal engine performance.