Component Function Check
Symptom
INSPECTION FLOW
1. CONFIRM SYMPTOM BY PERFORMING OPERATION CHECK - TEMPERATURE INCREASE
2. CHECK FOR ANY SYMPTOMS
Perform a complete operational check and check for any symptoms.
3. CHECK FOR SERVICE BULLETINS
Check for any service bulletins.
4. CHECK ENGINE COOLING SYSEM
5.CHECK SETTING OF TEMPERATURE SETTING TRIMMER
Using CONSULT, check the setting of "TEMP SET CORRECT" on "WORK SUPPORT" of HVAC.
6.CHECK WITH SELF-DIAGNOSIS FUNCTION OF CONSULT
NOTE: If DTC is displayed along with DTC U1000 or U1010, first diagnose the DTC U1000 or U1010.
7.CHECK WITH ACTIVE TEST OF CONSULT
8. CHECK AIR DUCTS
Check for disconnected or leaking air ducts.
9. CHECK HEATER HOSE TEMPERATURES
10. CHECK ENGINE COOLANT SYSTEM
Check thermostat operation.
11. CHECK HEATER HOSES
Check heater hoses for proper installation.
12. CHECK HEATER HOSE TEMPERATURES
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 ...
Exterior rear
Rear window defroster switch
High-mounted stop light
Interior trunk lid release. Trunk lid
Exterior trunk lid release/request button. Rearview camera
Rear sonar sensors (if so equipped)
Replacing bulbs
Fuel-filler door. Fuel recommendation
Child safety rear door locks
R ...
Driving on snow or ice
WARNING
Wet ice (32F, 0C and freezing rain),
very cold snow or ice can be slick and
very hard to drive on. The vehicle will
have much less traction or "grip" under
these conditions. Try to avoid driving on
wet ice until the road is salted or
sanded.
Whatever the condition, drive wi ...