Toyota Yaris Main Body Ecu Replace

Item

Measurement Item/Display (Range)

Normal Condition

Diagnostic Note

Dor Key SW-ULock

Door key-linked lock switch signal/ ON or OFF

ON: Door key cylinder is turned to lock position OFF: Driver side door key cylinder is turned to unlock position

-

ON (driver side door key cylinder is turned to lock/ unlock position) appears on tester screen.

REPLACE MAIN BODY ECU

CHECK HARNESS AND CONNECTOR (DRIVER SIDE DOOR LOCK ASSEMBLY - MAIN BODY ECU)

Wire Harness Side:

Main Body ECU Connector

I 2 3

¡I 1

10 11 12

|l3|l.4|l5|l6|l7 1 / i_i

4 5 18 19

Ul

S 9 20 21

22|23|24| 251261 —■

Front View

Front View

Main Body ECU Connector dB)

1

li 2

l=l

ÖJ if

g

3

4

5

6

1

10

11

12

13

14

15

16

17

18

Front View

Front Door Lock Assembly LB Connector

Front View

(a) Disconnect the D33 and 4H main body ECU connectors.

(b) Disconnect the G5 door lock connector.

(c) Measure the resistance. Standard resistance

Tester Connection

Specified Condition

D33-14 (UL3) - G5-10 (UL)

Below 1 q

4H-7 (L2) - G5-9 (L)

Below 1 q

D33-14 (UL3) or G5-10 (UL) - Body ground

10 kq or higher

4H-7 (L2) or G5-9 (L) - Body ground

10 kq or higher

(d) Reconnect the main body ECU connectors.

(e) Reconnect the door lock connector.

REPAIR OR REPLACE HARNESS OR CONNECTOR

REPLACE MAIN BODY ECU

INSPECT DOOR CONTROL SWITCH (for Center Console Side)

Component Side:

Door Control Switch (for center console side)

b145639e02

(a) Disconnect the D30 door control switch (for center console side) connector.

(b) Measure the resistance. Standard resistance

Tester Connection

Condition

Specified Condition

5 - 6

Lock

Below 1 q

4 - 6

Unlock

Below 1 q

5 - 6

OFF

Below 1 q

4 - 6

OFF

Below 1 q

(c) Reconnect the door control switch (for center console side) connector.

REPLACE DOOR CONTROL SWITCH (for Center Console Side)

CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - DOOR CONTROL SWITCH (Center Console Side))

Wire Harness Side:

Main Body ECU Connector

Front View

Main Body ECU Connector

Main Body ECU Connector

Front View

Front View

Door Control Switch (for center console side)

1

2

3

4

5

6

7

Front View b127311e02

(a) Disconnect the 4C and 4E main body ECU connectors.

(b) Disconnect the D30 door control switch (for center console side) connector.

(c) Measure the resistance of the fuses. Standard resistance

Tester Connection

Specified Condition

4C-10(UL1) - D30-4

Below 1 q

4E-11(L1) - D30-5

Below 1 q

4C-10(UL1) or D30-4 - Body ground

10 kq or higher

4E-11(L1) or D30-5 - Body ground

10 kq or higher

(d) Reconnect the main body ECU connector.

(e) Reconnect the door control switch (for center console side) connector.

REPAIR OR REPLACE HARNESS OR CONNECTOR

REPLACE MAIN BODY ECU

READ VALUE OF INTELLIGENT TESTER (DOR KEY SW-LOCK, DOR KEY SW-ULCK)

(a) Check the DATA LIST to ensure the proper operation of the door lock and unlock switch.

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Responses

  • berenice
    How to replace yaris connector or harness for ecu?
    2 years ago

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