Tech Tips
*: Use the intelligent tester.
VEHICLE BROUGHT TO WORKSHOP
NEXT |
CUSTOMER PROBLEM ANALYSIS
NEXT |
CONNECT INTELLIGENT TESTER TO DLC3*
Tech Tips
If the display indicates a communication fault in the intelligent tester, inspect the DLC3.
When any CAN communication system DTCs are output, perform troubleshooting on the CAN communication system first.
NEXT |
CHECK DTC AND FREEZE FRAME DATA*
Check for DTCs Click here and freeze frame data Click here.
Tech Tips
Record or print DTCs and freeze frame data if necessary.
NEXT |
CLEAR DTC AND FREEZE FRAME DATA*
Clear the DTCs and freeze frame data Click here.
NEXT |
CONDUCT VISUAL INSPECTION
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SELECT CHECK MODE DIAGNOSIS*
Switch the ECM from normal mode to check mode.
Tech Tips
Refer to Check Mode Procedure Click here.
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CONFIRM PROBLEM SYMPTOMS
Confirm problem symptoms.
Tech Tips
If the engine does not start, first perform the "Check DTC" procedure and "Conduct Basic Inspection" procedure below.
Result | Proceed to |
---|---|
Malfunction does not occur | A |
Malfunction occurs | B |
B |
GO TO STEP 10 |
A |
SIMULATE SYMPTOMS
Tech Tips
Refer to Symptom Simulation Click here.
NEXT |
CHECK DTC*
Check for DTCs.
Tech Tips
Refer to DTC Check / Clear Click here.
Result | Proceed to |
---|---|
DTC is output | A |
DTC is not output | B |
B |
GO TO STEP 12 |
A |
REFER TO DTC CHART
Tech Tips
Refer to Diagnostic Trouble Code Chart Click here.
NEXT |
CONDUCT BASIC INSPECTION
Conduct basic inspection.
Tech Tips
Refer to Basic Inspection Click here.
Result | Proceed to |
---|---|
Malfunctioning parts not confirmed | A |
Malfunctioning parts confirmed | B |
B |
GO TO STEP 17 |
A |
REFER TO PROBLEM SYMPTOMS TABLE
Tech Tips
Refer to Problem Symptoms Table Click here.
Result | Proceed to |
---|---|
Malfunctioning circuit confirmed | A |
Malfunctioning parts confirmed | B |
B |
GO TO STEP 17 |
A |
CHECK ECM POWER SOURCE CIRCUIT
Check the ECM power source circuit.
Tech Tips
Refer to ECM Power Source Circuit Click here.
NEXT |
CONDUCT CIRCUIT INSPECTION
Result | Proceed to |
---|---|
Malfunction not confirmed | A |
Malfunction confirmed | B |
B |
GO TO STEP 18 |
A |
CHECK FOR INTERMITTENT PROBLEMS
Check for intermittent problems.
Tech Tips
Refer to Check for Intermittent Problems Click here.
NEXT |
CONDUCT PARTS INSPECTION
NEXT |
IDENTIFY PROBLEM
NEXT |
ADJUST AND/OR REPAIR
NEXT |
CONDUCT CONFIRMATION TEST
NEXT |
END |