4 Runner 2WD L4-2.7L (2TR-FE) (2010)
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In the DTC check, it is very important to determine whether the problem indicated by the DTC is either: 1) still occurring; or 2)
occurred in the past but has since returned to normal. In addition, the DTC should be compared to the problem symptom to see if
they are related. For this reason, DTCs should be checked before and after confirmation of symptoms (i.e., whether or not
problem symptoms exist) to determine current system conditions, as shown in the flowchart below.
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Never skip the DTC check. Failing to check DTCs may, depending on the case, result in unnecessary troubleshooting for systems
operating normally or lead to repairs not related to the problem. Follow the procedures listed in the flowchart in the correct
order.
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The following flowchart shows how to proceed with troubleshooting using the DTC check. Directions from the flowchart will
indicate how to proceed either to DTC troubleshooting or to the troubleshooting of each problem symptom.
1. DTC CHECK
NEXT -- Continue to next step.
2. MAKE A NOTE OF DTC DISPLAYED AND THEN CLEAR MEMORY
NEXT -- Continue to next step.
3. SYMPTOM CONFIRMATION
B -- Go to step 5
A -- Continue to next step.
4. SIMULATION TEST USING SYMPTOM SIMULATION METHODS
NEXT -- Continue to next step.
5. DTC CHECK