LIN Communication System

MULTIPLEX COMMUNICATION: LIN COMMUNICATION SYSTEM: TERMINALS OF ECU

1. CHECK MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK)





(a) Disconnect the DA and DD main body ECU (driver side junction block) connectors.

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





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

2. CHECK POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY (for Power Window Control System [w/ Jam Protection Function])





(a) Disconnect the N2 power window regulator master switch assembly connector.

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





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

3. CHECK FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH (for Power Window Control System [w/ Jam Protection Function])





(a) Disconnect the N12 front power window regulator motor assembly LH connector.

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





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

4. CHECK FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH (for Power Window Control System [w/ Jam Protection Function])





(a) Disconnect the M11 front power window regulator motor assembly RH connector.

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





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

5. CHECK SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY (SLIDING ROOF ECU) (w/ Sliding Roof System)





(a) Disconnect the W3 sliding roof drive gear sub-assembly connector.

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





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

6. CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY (A/C ECU)





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

HINT
Check from the rear of the connector while it is connected to the air conditioning amplifier.





If the result is not as specified, the ECU may have a malfunction.

7. CHECK INTEGRATION CONTROL AND PANEL ASSEMBLY





(a) Disconnect the J37 integration control and panel assembly connector.

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





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