Toyota CH-R Service Manual: Lost Communication with Lateral Acceleration Sensor Module (U0124)
DESCRIPTION
The ECM receives signals sent from the airbag sensor assembly (yaw rate and acceleration sensor) via CAN communication. When DTCs indicating a CAN communication system malfunction are output, repair the CAN communication system before repairing each corresponding ECU or sensor.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
MIL |
Memory |
|---|---|---|---|---|---|
|
U0124 |
Lost Communication with Lateral Acceleration Sensor Module |
When the ignition switch is turned ON, there is no communication between the ECM and airbag sensor assembly (yaw rate and acceleration sensor) for 1.25 seconds or more (1 trip detection logic). |
|
Comes on |
DTC stored |
PROCEDURE
|
1. |
CLEAR DTC AND PERFORM ROAD TEST |
(a) Clear the DTCs.
Click here
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HINT:
Write down the currently output DTCs before clearing them.
(b) Start the engine and drive the vehicle at a low speed.
|
.gif)
|
2. |
CHECK DTC OUTPUT (DTC U0124) |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
Powertrain > Engine and ECT > Trouble Codes(e) Read the DTCs using the Techstream.
|
Result |
Proceed to |
|---|---|
|
DTC U0124 is not output |
A |
|
DTC U0124 is output |
B |
| A | .gif) |
CHECK FOR INTERMITTENT PROBLEMS |
| B | |
GO TO CAN COMMUNICATION SYSTEM |
Pressure Control Solenoid "K" Electrical (P282B)
DESCRIPTION
According to current control by the ECM, the shift solenoid valve SLS controls
secondary pulley pressure and belt clamping pressure in accordance with the input
shaft torque.
...
Pressure Control Solenoid "J" Electrical (Shift Solenoid Valve SLP) (P2822)
DESCRIPTION
According to current control by the ECM, the shift solenoid valve SLP controls
primary pulley pressure in accordance with the requested gear ratio to perform gear
ratio changes.
...
Other materials:
Toyota CH-R Service Manual > Lighting System: How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
Use the following procedure to troubleshoot the lighting system.
*: Use the Techstream.
PROCEDURE
1.
VEHICLE BROUGHT TO WORKSHOP
NEXT
...
Toyota CH-R Service Manual > Meter / Gauge System: Washer Fluid Level Warning Switch Circuit
DESCRIPTION
The combination meter assembly and level warning switch assembly are connected
via direct line. The combination meter assembly determines the washer fluid level
and outputs warning messages according to the washer fluid level warning switch
ON/OFF signal.
WIRING DIAGRAM
CAUTIO ...
Toyota CH-R Owners Manual
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Toyota CH-R Service Manual
- Introduction
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KIA Niro EV / Hybrid (SG2) - (2021-2023) - Owner's manual
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