Equator 2WD V6-4.0L (2009)
DETECT THE ROOT CAUSE
Identify the root cause using the created diagnosis sheet.
Identifying the root cause
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Draw a line on the diagnosis sheet to indicate the possible cause. Narrow the search.
NOTE:
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Color-code when drawing lines.
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Do not draw a line onto a existing line.
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Drawing a line is not necessary if the circuit is shorted. Refer to "Present Error - Short Circuit -", "Past Error - Short Circuit -".
Refer to the following for details of the trouble diagnosis procedure.
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"Present Error - Open Circuit -"
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"Present Error - Short Circuit -"
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"Past Error - Open Circuit -"
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"Past Error - Short Circuit -"
NOTE: When the root cause appears to be a branch line or short circuit, be sure to check the control unit as well as the communication line.
Present Error - Open Circuit -
Identify the error circuit using information from the "Bus check" ("ECU list" included).
1. ECU list: Check the items indicated in "ECU list". Draw a line on the diagnosis sheet to indicate the error circuit.
