LIN Communication System

MULTIPLEX COMMUNICATION: LIN COMMUNICATION SYSTEM: TERMINALS OF ECU

TERMINALS OF ECU

1. CHECK MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)
(a) Disconnect the E6*, E7* and E8* main body ECU connectors.
HINT: *: w/ Smart Key System

(b) Disconnect the ID*, IF* and IM* instrument panel junction block assembly connectors.
HINT: *: w/o Smart Key System





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





HINT:
- *1: w/ Smart Key System
- *2: w/o Smart Key System
If the result is not as specified, there may be a malfunction on the wire harness side.
(d) Reconnect the E6*, E7* and E8* main body ECU connectors.
HINT: *: w/ Smart Key System

(e) Reconnect the ID*, IF* and IM* instrument panel junction block assembly connectors.
HINT: *: w/o Smart Key System

(f) Measure the voltage according to the value(s) in the table below.





If the result is not as specified, the main body ECU (Instrument panel junction block assembly) may have a malfunction.
2. CHECK POWER WINDOW REGULATOR MOTOR (DRIVER SIDE)*
HINT: *: w/ Jam Protection Function on Driver Door

(a) Disconnect the I5 motor 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.
(c) Reconnect the I5 motor connector.
(d) Measure the voltage according to the value(s) in the table below.





If the result is not as specified, the motor may be malfunctioning.
3. CHECK SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY)
(a) Disconnect the Q13 ECU 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.
(c) Reconnect the Q13 ECU connector.
(d) Measure the voltage according to the value(s) in the table below.





If the result is not as specified, the motor may be malfunctioning.