RM38N0EC _57 Power Source / Network _111789 M20C-FKS, M20D-FKS BATTERY / CHARGING _0506213 CHARGING SYSTEM U

M20C-FKS, M20D-FKS BATTERY / CHARGING  CHARGING SYSTEM  TERMINALS OF ECM  


CHECK ECM


A538383E01
2.156,0.354 2.604,0.604 0.448,0.25 5.104,0.365 5.552,0.615 0.448,0.25 2.229,0.396 2.688,0.594 0.458,0.198 10 false C115 5.177,0.406 5.635,0.604 0.458,0.198 10 false A109

HINT:

The standard normal voltage and resistance between each pair of ECM terminals is shown in the table below. The appropriate conditions for checking each pair of terminals are also indicated. The result of checks should be compared with the standard normal voltage for that pair of terminals, displayed in the Specified Condition column. The illustration above can be used as a reference to identify the ECM terminal locations.


Terminal No. (Symbol) Terminal Description Condition Specified Condition
A109-31 (BATT) - A109-22 (E1) Battery (for measuring battery voltage and for ECM memory) Always 11 to 14 V
A109-22 (E1) - Body ground Ground Always Below 1 Ω
C115-90 (LIN) - Body ground LIN communication line Ignition switch off
(while LIN communication stopped)
10 kΩ or higher