DTC Logic

Diagnosis Procedure
1.CHECK USB HARNESS
Visually check USB harness.
U1243 display unit
U1255 satellite radio tunerCluster lid C
Removal and Installation
CLUSTER LID C
NOTE: The cluster lid C lower finisher is
only used in vehicles equipped with monochrome display unit.
Removal - With Monochrome Display
Release the clips and pawls and remove cluster lid C lower
finisher (1).
: Clip :
Pawl
Remove cluste ...
Audio display unit
Removal and Installation
Audio display unit
Audio & A/C display unit bracket
A/C display unit
Front cover
REMOVAL
Disconnect the battery negative terminal. Refer to PG-68, "Removal
and Installation (Battery Tray)".
Remove the cluster lid D. Refer to IP-11, "Removal ...
P0603 ECM power supply
Description
Battery voltage is supplied to the ECM even when the ignition switch
is turned OFF for the ECM memory function of the DTC memory, the
air-fuel ratio feedback compensation value memory, the idle air volume
learning value memory, etc.
DTC Logic
DTC DETECTION LOGIC
DTC CON ...