Toyota Tacoma 2015-2018 Service Manual: Communication Error from VSC to ECM (P1630)
DESCRIPTION
The skid control ECU (brake actuator assembly) sends signals such as cruise control cancel signals and brake demand response signals to the ECM when the dynamic radar cruise control system is operating.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
P1630 |
Communication Error from VSC to ECM |
While the vehicle speed is 36 km/h (22 mph) or more and the dynamic radar cruise control system is operating, communication data from the skid control ECU (brake actuator assembly) is logically inconsistent for approximately 0.5 seconds or more. |
|
CAUTION / NOTICE / HINT
NOTICE:
- Before replacing the ECM, refer to Registration.
w/o Smart Key System: Click here
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w/ Smart Key System: Click here
- First check the CAN communication system by following How to Proceed
with Troubleshooting. After checking that there are no malfunctions in the
CAN communication system, proceed with troubleshooting.
Click here
PROCEDURE
|
1. |
CHECK CAN COMMUNICATION SYSTEM |
(a) Using the Techstream, check if the CAN communication system is functioning normally.
Click here
|
Result |
Proceed to |
|---|---|
|
CAN communication system DTCs are not output |
OK |
|
CAN communication system DTCs are output |
NG |
| NG | .gif) |
GO TO CAN COMMUNICATION SYSTEM |
|
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|
2. |
CHECK FOR DTCs (RADAR CRUISE1) |
(a) Clear the DTCs.
Click here
(b) Perform the following to make sure that the DTC detection conditions are met.
HINT:
If the detection conditions are not met, the malfunction cannot be detected.
- Turn the ignition switch to ON.
- Turn the dynamic radar cruise control system on using the cruise control main switch (ON-OFF button).
- Drive the vehicle at 36 km/h (22 mph) or more for 0.5 seconds or more.
(c) Check for DTCs.
Click here
|
Result |
Proceed to |
|---|---|
|
DTC P1630 is not output |
A |
|
DTC P1630 is output |
B |
| A | |
USE SIMULATION METHOD TO CHECK |
|
|
3. |
REPLACE SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) |
(a) Replace the skid control ECU (brake actuator assembly).
Click here
|
|
4. |
CHECK FOR DTCs (RADAR CRUISE1) |
(a) Clear the DTCs.
Click here
(b) Perform the following to make sure that the DTC detection conditions are met.
HINT:
If the detection conditions are not met, the malfunction cannot be detected.
- Turn the ignition switch to ON.
- Turn the dynamic radar cruise control system on using the cruise control main switch (ON-OFF button).
- Drive the vehicle at 36 km/h (22 mph) or more for 0.5 seconds or more.
(c) Check for DTCs.
Click here
|
Result |
Proceed to |
|---|---|
|
DTC P1630 is not output |
A |
|
DTC P1630 is output |
B |
| A | |
END |
| B | |
REPLACE ECM |
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DESCRIPTION
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DESCRIPTION
When the destination information in the millimeter wave radar sensor assembly
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DTC No.
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Other materials:
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CAUTION / NOTICE / HINT
HINT:
Some versions of "Bluetooth" compatible audio players may not function, or the
function may be limited using the navigation receiver assembly, even if the portable
audio player itself can play files (See page ).
PROCEDURE
1.
CHE ...
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■ Wheel selection
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System Diagram
SYSTEM DIAGRAM
Component
Outline
Engine switch
Transponder key amplifier
Turns on the power and starts the engine.
Contains a built-in transponder key amplifier to start the engine
when the key does ...