DTC Logic

Diagnosis Procedure
1.CHECK USB HARNESS
Visually check USB harness.
U1243 display unit
U1255 satellite radio tunerDucts and grilles
Exploded View
Ducts
Side defroster nozzle (RH)
Front defroster nozzle
Side defroster nozzle (LH)
Upper ventilator duct
Heater and cooling unit assembly
Connector duct (LH)
Floor ventilator duct (LH)
Rear floor duct (LH)
Connector duct (center)
Rear ventilator duct (cen ...
Heater and Air Conditioner (automatic)
Front defroster button
Temperature control dial (driver's side)/
AUTO button
Display screen
Temperature control dial (passenger's
side)/DUAL button
Fresh air intake button
Air recirculation button
(air conditioner) button
(manual air flow control)
button
(fan speed cont ...
Ignition signal
Description
The ignition signal from the ECM is sent to and amplified by the power
transistor. The power transistor turns
ON and OFF the ignition coil primary circuit. This ON/OFF operation induces the
proper high voltage in the coil
secondary circuit.
Component Function Check
1.INSPECTIO ...