DIAGNOSIS AND REPAIR WORKFLOW
Work Flow
OVERALL SEQUENCE

DETAILED FLOW
1.INTERVIEW FOR MALFUNCTION
Find out what the customer's concerns are.
2.SYMPTOM CHECK
Verify the symptom from the customer's information.
3.BASIC INSPECTION
Check the operation of each part. Check if any concerns occur other than those mentioned in the customer interview.
4.SELF-DIAGNOSIS WITH CONSULT
Perform the self diagnosis with CONSULT. Check if any DTC is detected.
5.TROUBLE DIAGNOSIS BY DTC
Perform the trouble diagnosis for the detected DTC. Specify the malfunctioning part.
6.FAIL-SAFE ACTIVATION CHECK
Determine if the customer's concern is related to fail-safe activation.
7.SYSTEM DIAGNOSIS
Perform the system diagnosis for the system in which the fail-safe activates. Specify the malfunctioning part.
8.SYMPTOM DIAGNOSIS
Perform the symptom diagnosis. Specify the malfunctioning part.
9.MALFUNCTION PART REPAIR
Repair or replace the malfunctioning part.
10.REPAIR CHECK (SELF-DIAGNOSIS WITH CONSULT)
Perform the self diagnosis with CONSULT. Verify that no DTCs are detected. Erase all DTCs which were detected prior to the repair. Perform the self diagnosis with CONSULT again. Verify that DTC is not detected again.
11.REPAIR CHECK (OPERATION CHECK)
Check the operation of each part.
Service data and specifications (SDS)B2193 chain of ECM-IMMU
Description
BCM performs the ID verification with ECM that allows the
engine to start. Start the engine if the ID is OK.
ECM prevents the engine from starting if the ID is not registered. BCM starts
the communication with ECM if
ignition switch is turned ON.
DTC Logic
DTC DETECTION LOGIC ...
ECU diagnosis information
ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
Reference Value
VALUES ON THE DIAGNOSIS TOOL
CAUTION:
The display shows the control unit calculation data, so a normal value might be
displayed even in the
event the output circuit (harness) is open or short-circuited.
Note 1: C ...
P0452 evap control system pressure sensor
Description
The EVAP control system pressure sensor detects pressure in the
purge line. The sensor output voltage to the ECM increases as pressure
increases.
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously ...