DESCRIPTION The DTC C1A52 is stored when the Hybrid vehicle control ECU cannot recognize the driving support ECU assembly.
CAUTION / NOTICE / HINT NOTICE: Before replacing the hybrid vehicle control ECU, refer to Registration. Click here PROCEDURE
(a) Clear the DTCs. Powertrain > Radar Cruise2 > 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 Cruise2 > Trouble Codes
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Toyota Avalon Service & Repair Manual > Hv Relay Assembly: Removal
REMOVAL CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during HV battery junction block assembly removal/installation are shown below. Necessary Procedures After Part ...