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CHECK WIRE HARNESS AND CONNECTOR (UNLOCK WARNING SWITCH ASSEMBLY MAIN BODY ECU)

Wire Harness Side:

Unlock Warning Switch Assembly Connector

"FT

Front View

Main Body ECU Connector

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1

2

3

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5

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12 1

(a) Disconnect the D19 unlock warning switch connector.

(b) Disconnect the 4D main body ECU connector.

(c) Measure the resistance between the wire harness side connectors.

Standard resistance

Tester Connection

Specified Condition

D19-1 - 4D-7 (KSW)

Below 1 Q

D19-1 or 4D-7 (KSW) - Body ground

10 kQor higher

D19-2 - Body ground

Below 1 Q

(d) Reconnect the unlock warning switch and the main body ECU connectors.

REPAIR OR REPLACE HARNESS OR CONNECTOR

REPLACE MAIN BODY ECU

INSPECT FRONT DOOR COURTESY SWITCH (DRIVER SIDE)

(a) Remove the front door courtesy switch (driver side).

(b) Measure the resistance of the switch. Standard resistance

Tester Connection

Condition

Specified Condition

1 - Body ground

Not pushed (ON)

Below 1 Q

1 - Body ground

Pushed (OFF)

10 kQor higher

(c) Reinstall the front door courtesy switch.

REPLACE FRONT DOOR COURTESY SWITCH (DRIVER SIDE)

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