Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM100000001GEG4 |
Model Year Start: 2020 |
Model: Corolla |
Prod Date Range: [01/2019 -
] |
Title: 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING; 2020 - 2025 MY Corolla Corolla HV [01/2019 - ] |
HOW TO PROCEED WITH TROUBLESHOOTING
|
CAUTION / NOTICE / HINT
HINT:
*: Use the Techstream.
PROCEDURE
1.
|
VEHICLE BROUGHT TO WORKSHOP
|
NEXT
|
|
|
2.
|
CUSTOMER PROBLEM ANALYSIS
|
NEXT
|
|
|
3.
|
CONNECT TECHSTREAM TO DLC3*
|
HINT:
If the display indicates a communication malfunction, inspect the DLC3.
When any CAN communication system DTCs are output, perform troubleshooting for the CAN communication system first.
NEXT
|
|
|
4.
|
CHECK DTC AND FREEZE FRAME DATA*
|
(a) Check for DTCs.
Click here
Powertrain > Engine > Trouble Codes
(b) Check for freeze frame data.
Click here
HINT:
Record or print DTCs and freeze frame data if necessary.
NEXT
|
|
|
5.
|
CLEAR DTC AND FREEZE FRAME DATA*
|
(a) Clear the DTCs and freeze frame data.
Click here
Powertrain > Engine > Clear DTCs
NEXT
|
|
|
6.
|
CONDUCT VISUAL INSPECTION
|
NEXT
|
|
|
7.
|
SELECT CHECK MODE DIAGNOSIS*
|
(a) Change the ECM from normal mode to check mode.
Click here
Powertrain > Engine > Utility
Tester Display
|
Check Mode
|
NEXT
|
|
|
8.
|
CONFIRM PROBLEM SYMPTOMS
|
(a) Confirm the problem symptoms.
HINT:
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
|
A
|
|
|
HINT:
Refer to Symptom Simulation.
Click here
NEXT
|
|
|
(a) Check for DTCs.
Click here
Powertrain > Engine > Trouble Codes
Result
|
Proceed to
|
DTCs are output
|
A
|
DTCs are not output
|
B
|
A
|
|
|
HINT:
Refer to Diagnostic Trouble Code Chart.
Click here
NEXT
|
|
|
12.
|
CONDUCT BASIC INSPECTION
|
(a) Conduct basic inspection.
Click here
Result
|
Proceed to
|
Malfunctioning parts not confirmed
|
A
|
Malfunctioning parts confirmed
|
B
|
A
|
|
|
13.
|
REFER TO PROBLEM SYMPTOMS TABLE
|
HINT:
Refer to Problem Symptoms Table.
Click here
Result
|
Proceed to
|
Malfunctioning circuit confirmed
|
A
|
Malfunctioning parts confirmed
|
B
|
A
|
|
|
14.
|
CHECK ECM POWER SOURCE CIRCUIT
|
(a) Check the ECM power source circuit.
Click here
NEXT
|
|
|
15.
|
CONDUCT CIRCUIT INSPECTION
|
Result
|
Proceed to
|
Malfunction not confirmed
|
A
|
Malfunction confirmed
|
B
|
A
|
|
|
16.
|
CHECK FOR INTERMITTENT PROBLEMS
|
(a) Check for intermittent problems.
Click here
NEXT
|
|
|
17.
|
CONDUCT PARTS INSPECTION
|
NEXT
|
|
|
NEXT
|
|
|
NEXT
|
|
|
20.
|
CONDUCT CONFIRMATION TEST
|
NEXT |
|
END
|
|