SYSTEM DIAGRAM
1. DOOR BUS LINES
2. CERTIFICATION BUS LINES [w/ Smart Key System]
3. AIR CONDITIONING BUS LINES
4. LIGHTING BUS LINES [w/ Smart Beam]
System Description
How To Proceed With TroubleshootingOpen in Inside Luggage Compartment Electrical Key Oscillator Circuit (B27A7)
DESCRIPTION
The certification ECU (smart key ECU assembly) generates a request signal and
sends it to the indoor electrical key oscillator (for rear floor). To detect the
key inside the cabin, the indoor electrical key oscillator (for rear floor) creates ...
Terminals Of Ecu
TERMINALS OF ECU
1. CHECK SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY)
(a) Disconnect the P4 ECU connector.
(b) Measure the resistance and voltage according to the value(s) in the table
below.
HINT:
Measure the values on the wire harness si ...
Check CAN Bus Line for Short to +B
DESCRIPTION
There may be a short circuit between the CAN bus main wire and +B when no resistance
exists between terminals 6 (CANH) and 16 (BAT) or 14 (CANL) and 16 (BAT) of the
DLC3.
Symptom
Trouble Area
No resistan ...