Ca

CHECK CAN MS BUS MAIN WIRE OR CONNECTOR (CERTIFICATION ECU - MAIN BODY ECU)

(a) Turn the ignition switch off.

(b) Disconnect the E8 main body ECU connector.

(c) Measure the resistance according to the value(s) in the table below.

HINT:

The resistance must be measured after the E58 certification ECU connector is disconnected. Standard resistance

Tester Connection

Condition

Specified Condition

E58-27 (CANH) - E8-16 (CANP)

Always

Below 1 Q

E58-28 (CANL) - E8-15 (CANN)

Always

Below 1 Q

REPLACE MAIN BODY ECU

REPLACE MAIN BODY ECU

REPAIR OR REPLACE CAN MS BUS MAIN WIRE OR CONNECTOR

CHECK SHORT IN CAN MS BUS WIRES (CERTIFICATION ECU)

(a) Turn the ignition switch off.

(b) Disconnect the E58 certification ECU connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard resistance

Tester Connection

Condition

Specified Condition

E58-27 (CANH) - E58-28 (CANL)

Ignition switch off

108 to 132 Q or higher

REPLACE CERTIFICATION ECU

REPLACE CERTIFICATION ECU

Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

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