Toyota CH-R Service Manual: Millimeter Wave Radar Sensor Communication Stop Mode

NOTICE:

• Because the order of diagnosis is important to allow correct diagnosis, make sure to begin troubleshooting using How to Proceed with Troubleshooting when CAN communication system related DTCs are output.

  Click here

• Before measuring the resistance of the CAN bus, turn the ignition switch off and leave the vehicle for 1 minute or more without operating the key or any switches, or opening or closing the doors. After that, disconnect the cable from the negative (-) battery terminal and leave the vehicle for 1 minute or more before measuring the resistance.
• After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.

  Click here

• After performing repairs, perform the DTC check procedure and confirm that the DTCs are not output again.

  DTC check procedure: Turn the cruise control main switch on and then drive the vehicle at a speed of 40 km/h (25 mph) or more for approximately 10 seconds or more.

• After the repair, perform the CAN bus check and check that all the ECUs and sensors connected to the CAN communication system are displayed as normal.

  Click here

• Inspect the fuses for circuits related to this system before performing the following procedure.

HINT:

• Before disconnecting related connectors for inspection, push in on each connector body to check that the connector is not loose or disconnected.
• When a connector is disconnected, check that the terminals and connector body are not cracked, deformed or corroded.

DCM Communication Stop Mode

DESCRIPTION Detection Item Symptom Trouble Area DCM Communication Stop Mode Any of the following conditions are met: Communi ...

Open in Bus 1 Main Bus Line

DESCRIPTION There may be an open circuit in one of the CAN main bus lines when the resistance between terminals 23 (CA1H) and 8 (CA1L) of the central gateway ECU (network gateway ECU) is 70 Ω or ...

Other materials:

Toyota CH-R Service Manual > Smart Key System(for Start Function): Dtc Check / Clear
DTC CHECK / CLEAR NOTICE: When using the Techstream with the engine switch off, connect the Techstream to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select the vehicle type u ...

Toyota CH-R Service Manual > Tire Pressure Warning System: Receiver Error (C2176/76)
DESCRIPTION The signals are transmitted to the tire pressure warning ECU and receiver in the vehicle as radio waves. DTC No. Detection Item DTC Detection Condition Trouble Area Note C2176/76 Receiver Error ...