LIN Communication System

NETWORKING: LIN COMMUNICATION SYSTEM: TERMINALS OF ECU

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

(a) Disconnect the 2C and 2B instrument panel junction block 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 2C and 2B instrument panel junction block assembly connectors.

(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 (for Driver Side)

(a) Disconnect the K2 power window regulator motor assembly (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 K2 power window regulator motor assembly (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 (for driver side) may be malfunctioning.

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

(a) Disconnect the J2 power window regulator motor assembly (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 J2 power window regulator motor assembly (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 (for front passenger side) may be malfunctioning.

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

(a) Disconnect the L2 power window regulator motor assembly (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 L2 power window regulator motor assembly (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 (for rear RH side) may be malfunctioning.

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

(a) Disconnect the M2 power window regulator motor assembly (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 M2 power window regulator motor assembly (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 (for rear LH side) may be malfunctioning.

6. CHECK MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY

(a) Disconnect the K5 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 K5 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 T10 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 T10 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 H1 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 H1 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 (IMMOBILIZER CODE ECU)

(a) Disconnect the H22 ID code box (immobilizer 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 H22 ID code box (immobilizer 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 (immobilizer code ECU) may be malfunctioning.

10. CHECK TRANSMISSION CONTROL ECU ASSEMBLY

(a) Disconnect the A21 and A22 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 A21 and A22 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 H3 and H4 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 H3 and H4 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.