Detect The Root Cause: Notes

WARNING: This page is about a different car, the 2008 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

Identify the root cause using the created diagnosis sheet.

Identifying the root cause

Draw a line on the diagnosis sheet to indicate the possible cause. Narrow the search.

NOTE:

Color-code when drawing lines.
Do not draw a line onto a existing line.

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.

"PRESENT ERROR - OPEN CIRCUIT - "
"PRESENT ERROR - SHORT CIRCUIT - "
"PAST ERROR - OPEN CIRCUIT - "
"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.