LIN Communication System

NETWORKING: LIN COMMUNICATION SYSTEM: TERMINALS OF ECU

1. CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

(a) Disconnect the MB and L8* instrument panel junction block assembly connector.









Text in Illustration





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

HINT
Measure the values on the wire harness side with the connectors disconnected.





* *: w/ LED Headlight or Glass Roof

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

(c) Reconnect the MB instrument panel junction block assembly connector.

(d) Check for pulses according to the value(s) in the table below.





If the result is not as specified, the main body ECU (multiplex network body ECU) or instrument panel junction block assembly may be malfunctioning.

2. CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY LH (for Driver Side)

(a) Disconnect the O2 power window regulator motor assembly LH (for driver side) connector.





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

HINT
Measure the values on the wire harness side with the connector disconnected.





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

(c) Reconnect the O2 power window regulator motor assembly LH (for driver side) connector.

(d) Check for pulses according to the value(s) in the table below.





If the result is not as specified, the power window regulator motor assembly LH (for driver side) may be malfunctioning.

3. CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY RH (for Front Passenger Side)

(a) Disconnect the N2 power window regulator motor assembly RH (for front passenger side) connector.





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

HINT
Measure the values on the wire harness side with the connector disconnected.





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

(c) Reconnect the N2 power window regulator motor assembly RH (for front passenger side) connector.

(d) Check for pulses according to the value(s) in the table below.





If the result is not as specified, the power window regulator motor assembly RH (for front passenger side) may be malfunctioning.

4. CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY RH (for Rear RH Side)

(a) Disconnect the P4 power window regulator motor assembly RH (for rear RH side) connector.





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

HINT
Measure the values on the wire harness side with the connector disconnected.





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

(c) Reconnect the P4 power window regulator motor assembly RH (for rear RH side) connector.

(d) Check for pulses according to the value(s) in the table below.





If the result is not as specified, the power window regulator motor assembly RH (for rear RH side) may be malfunctioning.

5. CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY LH (for Rear LH Side)

(a) Disconnect the Q4 power window regulator motor assembly LH (for rear LH side) connector.





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

HINT
Measure the values on the wire harness side with the connector disconnected.





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

(c) Reconnect the Q4 power window regulator motor assembly LH (for rear LH side) connector.

(d) Check for pulses according to the value(s) in the table below.





If the result is not as specified, the power window regulator motor assembly LH (for rear LH side) may be malfunctioning.

6. CHECK MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY

(a) Disconnect the O6 multiplex network master switch assembly connector.





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

HINT
Measure the values on the wire harness side with the connector disconnected.





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

(c) Reconnect the O6 multiplex network master switch assembly connector.

(d) Check for pulses according to the value(s) in the table below.





If the result is not as specified, the multiplex network master switch assembly may be malfunctioning.

7. CHECK SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY) (w/ Sliding Roof System)

(a) Disconnect the z21 sliding roof ECU (sliding roof drive gear assembly) connector.





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

HINT
Measure the values on the wire harness side with the connector disconnected.





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

(c) Reconnect the z21 sliding roof ECU (sliding roof drive gear assembly) connector.

(d) Check for pulses according to the value(s) in the table below.





If the result is not as specified, the sliding roof ECU (sliding roof drive gear assembly) may be malfunctioning.

8. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

(a) Disconnect the L62 certification ECU (smart key ECU assembly) connector.





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

HINT
Measure the values on the wire harness side with the connector disconnected.





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

(c) Reconnect the L62 certification ECU (smart key ECU assembly) connector.

(d) Measure the voltage and check for pulses according to the value(s) in the table below.





If the result is not as specified, the certification ECU (smart key ECU assembly) may be malfunctioning.

9. CHECK ID CODE BOX (IMMOBILISER CODE ECU)

(a) Disconnect the L10 ID code box (immobiliser code ECU) connector.





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

HINT
Measure the values on the wire harness side with the connector disconnected.





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

(c) Reconnect the L10 ID code box (immobiliser code ECU) connector.

(d) Check for pulses according to the value(s) in the table below.





If the result is not as specified, the ID code box (immobiliser code ECU) may be malfunctioning.

10. CHECK TRANSMISSION CONTROL ECU ASSEMBLY

(a) Disconnect the A23 and A24 transmission control ECU assembly connectors.





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

HINT
Measure the values on the wire harness side with the connectors disconnected.





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

(c) Reconnect the A23 and A24 transmission control ECU assembly connectors.

(d) Check for pulses according to the value(s) in the table below.





If the result is not as specified, the transmission control ECU assembly may be malfunctioning.

11. CHECK POWER MANAGEMENT CONTROL ECU

(a) Disconnect the L5 and L6 power management control ECU connectors.





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

HINT
Measure the values on the wire harness side with the connectors disconnected.





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

(c) Reconnect the L5 and L6 power management control ECU connectors.

(d) Check for pulses according to the value(s) in the table below.





If the result is not as specified, the power management control ECU may be malfunctioning.