CAUTION / NOTICE / HINT HINT:
PROCEDURE
(a) Measure the battery voltage. Standard Voltage: 11 to 14 V If the voltage is below 11 V, replace or recharge the battery before proceeding to the next step.
(a) Using the Techstream, check if the CAN communication system is functioning normally. HINT: Refer to CAN Bus Check in CAN Communication System. Click here
OK: CAN communication system is functioning normally.
HINT: Refer to DTC Check / Clear. Click here (a) Check for DTCs and note any codes that are output. Chassis > Front Recognition Camera > Trouble Codes(b) Clear the DTCs. Chassis > Front Recognition Camera > Clear DTCs(c) Recheck for DTCs. Try to reproduce the DTCs by duplicating the conditions indicated by the DTCs. Chassis > Front Recognition Camera > Trouble Codes
HINT: Refer to Problem Symptoms Table. Click here
(a) Terminals of ECU Click here (b) Data List / Active Test Click here
NOTICE: If the forward recognition camera has been replaced with a new one, it is necessary to perform forward recognition camera adjustment. Click here
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Tire Pressure Warning System(for Hv Model): Vehicle Speed Information Communication Lost (C2178)
DESCRIPTION The tire pressure warning ECU and receiver receives signals from the combination meter assembly via CAN communication. If a malfunction occurs in this communication line, DTC C2178 is output. DTC No. Detection Item DTC Detection Condition Trouble Area Note C2178 Vehicle Speed Information ...