DESCRIPTION The hybrid vehicle control ECU sends signals such as dynamic radar cruise control operation signals, brake operation demand signals and buzzer operation demand signals to the skid control ECU (brake booster with master cylinder assembly) when the dynamic radar cruise control is operating. Therefore, if the skid control ECU (brake booster with master cylinder assembly) detects a communication error with the hybrid vehicle control ECU, it sends a malfunction signal back to the hybrid vehicle control ECU.
CAUTION / NOTICE / HINT NOTICE:
PROCEDURE
(a) Using the Techstream, check if the CAN communication system is functioning normally. Click here
(a) Clear the DTCs. Powertrain > Radar Cruise1 > Clear DTCs(b) Make sure that the DTC detection conditions are met. HINT: If the detection conditions are not met, the system cannot detect the malfunction. (c) Check for DTCs. Powertrain > Radar Cruise1 > Trouble Codes
(a) Replace the hybrid vehicle control ECU. Click here
(a) Clear the DTCs. Powertrain > Radar Cruise1 > Clear DTCs(b) Make sure that the DTC detection conditions are met. HINT: If the detection conditions are not met, the system cannot detect the malfunction. (c) Check for DTCs. Powertrain > Radar Cruise1 > Trouble Codes
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Toyota Avalon Service & Repair Manual > Can Communication System(for Hv Model): Certification ECU Communication Stop Mode
DESCRIPTION Detection Item Symptom Trouble Area Certification ECU Communication Stop Mode Any of the following conditions are met: Communication stop for "Certification (Smart)" is indicated on the "Communication Bus Check" screen of the Techstream. Click here Communication stop history for "Certifi ...