DESCRIPTION
Detection Item |
Symptom |
Trouble Area |
---|---|---|
Central Gateway ECU Communication Stop Mode |
Communication system DTCs (DTCs that start with U) that correspond to "Central Gateway ECU Communication Stop Mode" in "DTC Combination Table" are output. Click here |
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
CAUTION:
When performing the confirmation driving pattern, obey all speed limits and traffic laws.
NOTICE:
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Click here
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DTC check procedure: Turn the ignition switch to ON and wait for 1 minute or more. Then operate the suspected malfunctioning system and drive the vehicle at 60 km/h (37 mph) or more for 5 minutes or more.
Click here
HINT:
PROCEDURE
1. |
CHECK FOR OPEN IN CAN LINES (CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) CAN MAIN OR BRANCH LINE) |
(a) Disconnect the cable from the negative (-) battery terminal. |
|
(b) Disconnect the central gateway ECU (network gateway ECU) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Bus 2
Tester Connection |
Condition |
Specified Condition |
---|---|---|
N36-18 (CA4H) - N36-17 (CA4L) |
Cable disconnected from negative (-) battery terminal |
54 to 69 Ω |
Tester Connection |
Condition |
Specified Condition |
---|---|---|
N36-6 (CA3H) - N36-19 (CAYH) |
Cable disconnected from negative (-) battery terminal |
Below 1 Ω |
N36-21 (CA3L) - N36-20 (CAYL) |
Cable disconnected from negative (-) battery terminal |
Below 1 Ω |
Tester Connection |
Condition |
Specified Condition |
---|---|---|
N36-15 (CA5H) - N36-9 (CAXH) |
Cable disconnected from negative (-) battery terminal |
Below 1 Ω |
N36-16 (CA5L) - N36-24 (CAXL) |
Cable disconnected from negative (-) battery terminal |
Below 1 Ω |
*A |
Bus 2 |
*B |
Bus 3 |
*C |
Bus 5 |
*a |
Front view of wire harness connector (to Central Gateway ECU (Network Gateway ECU)) |
Result |
Proceed to |
---|---|
OK |
A |
NG (Bus 2 Branch Lines) |
B |
NG (Bus 3 or Bus 5 Main Lines) |
C |
B | ![]() |
REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) |
C | ![]() |
REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) |
|
2. |
CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) |
(a) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
(b) Connect the cable to the negative (-) battery terminal.
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Switch Condition |
Specified Condition |
---|---|---|
N36-1 (BATT) - Body ground |
Always |
11 to 14 V |
N36-2 (ACC) - Body ground |
Ignition switch ACC |
11 to 14 V |
N36-11 (IG1) - Body ground |
Ignition switch IG |
11 to 14 V |
N36-12 (IG2) - Body ground |
Ignition switch IG |
11 to 14 V |
*a |
Front view of wire harness connector (to Central Gateway ECU (Network Gateway ECU)) |
OK | ![]() |
REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
System Diagram
SYSTEM DIAGRAM
Communication Table
Transmitting ECU
Receiving ECU
Signal
Communication Method
Power Window Regulator Master Switch Assembly
Power Window Regulator Motor Assembly (for Driver Door)
Power Window ...
Front Left Seat Heat Sensor Circuit (B14C1)
DESCRIPTION
Output to the front seat cushion heater assembly LH temperature sensor stops
if one of the following occurs: 1) the temperature sensor is open or shorted; or
2) the temperature sensor is damaged and its output value does not change.
DTC Code
DTC Detection Cond ...
Glossary Of Sae And Toyota Terms
GLOSSARY OF SAE AND TOYOTA TERMS
This glossary lists all SAE-J1930 terms and abbreviations used in this manual
in compliance with SAE recommendations, as well as their TOYOTA equivalents.
SAE ABBREVIATIONS
SAE TERMS
TOYOTA TERMS ( )-ABBREVIATIONS
...