TERMINALS OF ECU
CHECK 4WD ECU ASSEMBLY
(a) Measure the voltage and resistance of the connector.
Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
---|---|---|---|---|
R10-10 (4WDS) - R10-4 (GND) | P - W-B | AWD lock mode switch signal | Engine switch on (IG) AWD lock mode switch released → pressed and held | 11 to 14 V → Below 1 V |
R10-6 (CANH) - R10-5 (CANL) | B - W | HIGH-level CAN bus wire - LOW-level CAN bus wire | Cable disconnected from negative (-) battery terminal | 54 to 69 Ω |
R10-4 (GND) - Body ground | W-B - Body ground | Ground | Always | Below 1 Ω |
R10-3 (IG1) - R10-4 (GND) | B - W-B | Power source voltage | Engine switch on (IG) | 11 to 14 V |
R10-2 (SLC+) - R10-1 (SLC-) | L - B | 4WD linear solenoid signal | Shift lever in D, engine idling | Pulse generation (See waveform 1) |
If the result is not as specified, the 4WD ECU assembly may have a malfunction.
(b) Using an oscilloscope, check the waveform 1.
Waveform 1 (Reference) Item | Content |
---|---|
Terminal No. (Symbol) | R10-2 (SLC+) - R10-1 (SLC-) |
Tester Range | 2 V/DIV., 1 msec./DIV. |
Condition | Shift lever in D, engine idling |
Chevrolet Trax (2013-2022) Owner's Manual > Customer Information: Reporting Safety Defects
Reporting Safety Defects to the United States Government
If you believe that your vehicle
has a defect which could cause
a crash or could cause injury or
death, you should immediately
inform the National Highway
Traffic Safety Administration
(NHTSA) in addition to notifying
General Motors.
If NHTSA ...
Lexus RX (RX 350L, RX450h) 2016-2023 Repair Manual > Power Mirror Control System (w/ Memory): Driver Side Power Mirror cannot be Adjusted with Power Mirror Switch
DESCRIPTION The multiplex network master switch assembly sends the mirror adjust switch signals to the main body ECU (multiplex network body ECU) via LIN communication. The main body ECU (multiplex network body ECU) then sends the received mirror adjust switch signals to the outer mirror control ECU ...