CAUTION / NOTICE / HINT
HINT:
- Use this procedure to troubleshoot the engine immobiliser system.
- *: Use the Techstream.
PROCEDURE
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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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HINT:
- In troubleshooting, confirm that the problem symptoms have been accurately
identified. Preconceptions should be discarded in order to make an accurate
judgment. To clearly understand what the problem symptoms are, it is extremely
important to ask the customer about the problem and the conditions at the time
the malfunction occurred.
- Gather as much information as possible for reference. Past problems that
seem unrelated may also help in some cases.
- The following 5 items are important points for problem analysis:
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What
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Vehicle model, system name
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When
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Date, time, occurrence frequency
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Where
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Whether the problem occurs at a specific location
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Under what conditions?
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Whether the doors were locked or unlocked, whether the ignition switch
was on, whether the engine was running.
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How did it happen?
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Problem symptoms
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| NEXT |
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3.
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INSPECT BATTERY VOLTAGE
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(a) Measure the battery voltage.
Standard voltage:
11 to 14 V
If the voltage is below 11 V, recharge or replace the battery before proceeding
to the next step.
| NEXT |
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4.
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CRANK ENGINE FOR MORE THAN 10 SECONDS
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| NEXT |
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(a) Check for DTCs and note any codes that are output.
Click here 
HINT:
Before checking for DTCs, perform the "DTC Output Confirmation Operation" of
each diagnostic procedure.
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Result
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Proceed to
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DTCs are not output
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A
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SFI system DTCs are output (for 1UR-FE)
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B
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SFI system DTCs are output (for 3UR-FE)
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C
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SFI system DTCs are output (for 3UR-FBE)
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D
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Engine immobiliser system DTCs are output
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E
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| E |
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GO TO DIAGNOSTIC TROUBLE CODE CHART
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| A |
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6.
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CHECK FOR DTC* (TRANSPONDER KEY ECU ASSEMBLY)
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(a) Check for DTCs and note any codes that are output.
Click here
HINT:
Before checking for DTCs, perform the "DTC Output Confirmation Operation" of
each diagnostic procedure.
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Result
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Proceed to
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DTCs are not output
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A
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Engine immobiliser system DTCs are output
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B
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| B |
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GO TO DIAGNOSTIC TROUBLE CODE CHART
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| A |
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7.
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PROBLEM SYMPTOMS TABLE
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(a) Refer to Problem Symptoms Table.
Click here
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Result
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Proceed to
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Fault is not listed in problem symptoms table
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A
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Fault is listed in problem symptoms table
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B
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| B |
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GO TO STEP 9
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| A |
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8.
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OVERALL ANALYSIS AND TROUBLESHOOTING*
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(a) Data List / Active Test.
Click here
(b) Terminals of ECU.
Click here
| NEXT |
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HINT:
If the transponder key ECU assembly, ECM, or key are replaced, refer to Registration.
Click here
| NEXT |
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(a) Clear the DTCs.
Click here
(b) Check for DTCs.
Click here
HINT:
Before checking for DTCs, perform the "DTC Output Confirmation Operation" of
each diagnostic procedure.
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Result
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Proceed to
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DTCs are not output
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A
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Engine immobiliser system DTCs are output
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B
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| A |
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END
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| B |
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GO TO DIAGNOSTIC TROUBLE CODE CHART
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