DTC Logic
DTC DETECTION LOGIC
DTC No. | CONSULT screen terms (Trouble diagnosis content) | DTC detecting condition | Possible cause |
P0603 | ECM BACK UP CIRCUIT [Internal control module keep alive memory (KAM) error] |
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DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
TESTING CONDITION:
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
Is 1st trip DTC detected? YES >> Proceed to EC-346, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
1.CHECK ECM POWER SUPPLY AND GROUND CIRCUIT
Perform trouble diagnosis for ECM power supply and ground circuit. Refer to EC-164, "Diagnosis Procedure".
Is the inspection result normal? YES >> GO TO 2.
NO >> Repair or replace error-detected parts.
2.CHECK INTERMITTENT INCIDENT
Check intermittent incident. Refer to GI-39, "Intermittent Incident".
Is the inspection result normal? YES >> GO TO 3.
NO >> Repair or replace error-detected parts.
3.PERFORM DTC CONFIRMATION PROCEDURE
Is the 1st trip DTC P0603 displayed again? YES >> Replace ECM. Refer to EC-485, "Removal and Installation".
NO >> INSPECTION END
During a call
While a call is active, press the
button to
access additional options. Speak one of the following
commands:
“(numbers)” – Speak numbers and then say
“Send” or say “Correction” to change the
numbers entered.
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Precaution
Precaution for supplemental restraint system (srs) "air bag" and "seat belt
pre-tensioner"
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”,
used along
with a front seat belt, helps to reduce the risk or severity of injur ...
System description
COMPONENT PARTS
Component Part Location
ECM
IPDM E/R
BCM (view with combination meter
removed)
A/C auto amp. (view with A/C switch
assembly removed)
A/C switch assembly
A/C Compressor
Refrigerant pressure sensor (view
with front bumper fascia removed)
Fuse Block (J/ ...