Toyota Camry (XV70): Terminals Of Ecu
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 |
|---|---|---|---|---|
|
K145-6 (CANH) - K145-5 (CANL) |
P - W | HIGH-level CAN bus wire - LOW-level CAN bus wire |
Cable disconnected from negative (-) battery terminal |
54 to 69 Ω |
|
K145-4 (GND) - Body ground |
W-B - Body ground | Ground |
Always | Below 1 Ω |
|
K145-3 (IG1) - K145-4 (GND) |
SB - W-B | Power source voltage |
Ignition switch ON | 11 to 14 V |
|
K145-2 (SLC+) - K145-1 (SLC-) |
W - B | 4WD linear solenoid signal |
D position, 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) |
K145-2 (SLC+) - K145-1 (SLC-) |
|
Tester Range | 2 V/DIV., 1 msec./DIV. |
|
Condition | D position, engine idling |
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Dtc Check / Clear
DTC CHECK / CLEAR CHECK DTC (a) Check the DTCs.
(1) Connect the Techstream to the DLC3. (2) Turn the ignition switch to ON.
(3) Turn the Techstream on. (4) Read the DTCs following the prompts on t
Freeze Frame Data
FREEZE FRAME DATA FREEZE FRAME DATA (a) When a DTC is stored, the 4WD ECU assembly stores the current vehicle state as Freeze Frame Data.
HINT: Freeze Frame Data at the time a DTC is stored:
Wh
Fail-safe Chart
FAIL-SAFE CHART FAIL-SAFE CHART Dynamic Torque Control AWD System
DTC No. Trouble Area
AWD Warning Message Fail-safe Operation
Memory Fail-safe Deactivation Condition
C12
SEE MORE:
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the susp
Software Incompatibility with Body Control Module Invalid/Incompatible Software Component (U032257)
DESCRIPTION If the vehicle information stored in the forward recognition camera does not match the vehicle information sent from the main body ECU (multiplex network body ECU), the forward recognition camera stores DTC U032257.
DTC No. Detection Item
DTC Detection Condition Trouble Ar
