Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM100000001GH8R |
Model Year Start: 2020 |
Model: Corolla |
Prod Date Range: [01/2019 - 11/2022] |
Title: 2ZR-FAE (ENGINE CONTROL): SFI SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING; 2020 - 2023 MY Corolla [01/2019 - 11/2022] |
HOW TO PROCEED WITH TROUBLESHOOTING
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CAUTION / NOTICE / HINT
HINT:
*: Use the Techstream.
PROCEDURE
1.
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VEHICLE BROUGHT TO WORKSHOP
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NEXT
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2.
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CUSTOMER PROBLEM ANALYSIS
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NEXT
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3.
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CONNECT TECHSTREAM TO DLC3*
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HINT:
If the display indicates a communication fault in the Techstream, inspect the DLC3.
When any CAN communication system DTCs are output, perform troubleshooting on the CAN communication system first.
NEXT
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4.
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CHECK DTC AND FREEZE FRAME DATA*
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(a) Check for DTCs.
Powertrain > Engine and ECT > Trouble Codes
(b) Check for Freeze Frame Data.
Click here
HINT:
Record or print DTCs and Freeze Frame Data if necessary.
NEXT
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5.
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CLEAR DTC AND FREEZE FRAME DATA*
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(a) Clear the DTCs and Freeze Frame Data.
Powertrain > Engine and ECT > Clear DTCs
NEXT
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6.
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CONDUCT VISUAL INSPECTION
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NEXT
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7.
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SELECT CHECK MODE DIAGNOSIS*
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(a) Switch the ECM from normal mode to check mode.
Powertrain > Engine and ECT > Utility
Tester Display
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Check Mode
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HINT:
Refer to Check Mode Procedure.
Click here
NEXT
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8.
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CONFIRM PROBLEM SYMPTOMS
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(a) Confirm problem symptoms.
HINT:
If the engine does not start, first perform the "Check DTC" procedure and "Conduct Basic Inspection" procedure below.
Result
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Proceed to
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Malfunction does not occur
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A
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Malfunction occurs
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B
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A
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HINT:
Refer to Symptom Simulation.
Click here
NEXT
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(a) Check for DTCs.
Powertrain > Engine and ECT > Trouble Codes
HINT:
Refer to DTC Check / Clear.
Click here
Result
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Proceed to
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DTCs are output
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A
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DTCs are not output
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B
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A
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HINT:
Refer to Diagnostic Trouble Code Chart.
Click here
NEXT
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12.
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CONDUCT BASIC INSPECTION
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(a) Conduct basic inspection.
HINT:
Refer to Basic Inspection.
Click here
Result
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Proceed to
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Malfunctioning parts not confirmed
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A
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Malfunctioning parts confirmed
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B
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A
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13.
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REFER TO PROBLEM SYMPTOMS TABLE
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HINT:
Refer to Problem Symptoms Table.
Click here
Result
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Proceed to
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Malfunctioning circuit confirmed
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A
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Malfunctioning parts confirmed
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B
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A
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14.
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CHECK ECM POWER SOURCE CIRCUIT
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(a) Check the ECM power source circuit.
HINT:
Refer to ECM Power Source Circuit.
Click here
NEXT
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15.
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CONDUCT CIRCUIT INSPECTION
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Result
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Proceed to
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Malfunction not confirmed
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A
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Malfunction confirmed
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B
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A
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16.
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CHECK FOR INTERMITTENT PROBLEMS
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(a) Check for intermittent problems.
HINT:
Refer to Check for Intermittent Problems.
Click here
NEXT
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17.
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CONDUCT PARTS INSPECTION
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NEXT
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NEXT
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NEXT
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20.
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CONDUCT CONFIRMATION TEST
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NEXT |
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END
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