Toyota CH-R Service Manual: Terminals Of Ecm

TERMINALS OF ECM

CHECK ECM

HINT:

The standard normal voltage 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)

Wiring Color

Terminal Description

Condition

Specified Condition

C63-59 (E1) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

A38-1 (BATT) - C63-59 (E1)

R - W-B

Battery

(for measuring battery voltage and for ECM memory)

Always

11 to 14 V

C63-61 (LIN) - Body ground

B - Body ground

LIN communication line

Ignition switch off

(while LIN communication is stopped)

10 kΩ or higher

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