LIN Communication System

NETWORKING: LIN COMMUNICATION SYSTEM: TERMINALS OF ECU

1. MAIN BODY ECU AND INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY





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(a) Check main body ECU.

(1) Turn the ignition switch off.

(2) Remove the main body ECU from the instrument panel junction block assembly Removal.

(3) Measure the resistance and voltage according to the value(s) in the table below.

HINT
The instrument panel junction block assembly connectors must all be connected.





(b) Check instrument panel junction block assembly.





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(1) Disconnect the 3C and 3D instrument panel junction block assembly connector.

(2) Measure the resistance and voltage according to the value(s) in the table below.





HINT
If the result is not as specified, there may be a malfunction on the wire harness side.

2. POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY





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(a) Check the power window regulator master switch assembly.

(1) Turn the ignition switch off.

(2) Disconnect the F1 power window regulator master switch assembly connector.

(3) Measure the resistance and voltage according to the value(s) in the table below.





HINT
If the result is not as specified, there may be a malfunction on the wire harness side.

(4) Reconnect the F1 power window regulator master switch assembly connector.

(5) Measure the pulse according to the value(s) in the table below.





HINT
If the result is not as specified, the power window regulator master switch assembly may have a malfunction.

3. FRONT DOOR WINDOW REGULATOR SUB-ASSEMBLY RH





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(a) Check the front door window regulator sub-assembly RH.

(1) Turn the ignition switch off.

(2) Disconnect the E4 front door window regulator sub-assembly RH connector.

(3) Measure the resistance and voltage according to the value(s) in the table below.





HINT
If the result is not as specified, there may be a malfunction on the wire harness side.

(4) Reconnect the E4 front door window regulator sub-assembly RH connector.

(5) Measure the pulse according to the value(s) in the table below.





HINT
If the result is not as specified, the front door window regulator sub-assembly RH may have a malfunction.

4. FRONT DOOR WINDOW REGULATOR SUB-ASSEMBLY LH





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(a) Check the front door window regulator sub-assembly LH.

(1) Turn the ignition switch off.

(2) Disconnect the F4 front door window regulator sub-assembly LH connector.

(3) Measure the resistance and voltage according to the value(s) in the table below.





HINT
If the result is not as specified, there may be a malfunction on the wire harness side.

(4) Reconnect the F4 front door window regulator sub-assembly LH connector.

(5) Measure the pulse according to the value(s) in the table below.





HINT
If the result is not as specified, the front door window regulator sub-assembly LH may have a malfunction.