Toyota Camry owners & service manuals

Toyota Camry (XV70): Invalid Data Received from ECM/PCM "A" Invalid Serial Data Received (U040181)

Toyota Camry Repair Manual XV70 (2018-2024) / Engine, Hybrid System / Cruise Control / Dynamic Radar Cruise Control System / Invalid Data Received from ECM/PCM "A" Invalid Serial Data Received (U040181)

DESCRIPTION

If the ECM cannot recognize the forward recognition camera. DTC U040181 is stored.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

DTC Output from

U040181

Invalid Data Received from ECM/PCM "A" Invalid Serial Data Received

Approximately 17 seconds or more after the ignition switch is turned to ON, the ECM cannot recognize the forward recognition camera for approximately 2 seconds or more.

ECM

Radar Cruise2

CAUTION / NOTICE / HINT

NOTICE:

Before replacing the ECM, refer to Registration.

w/ Smart Key System: Click here

w/o Smart Key System: Click here

PROCEDURE

1.

CHECK FOR DTC (Radar Cruise2)

(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

Result

Proceed to

DTC U040181 is not output

A

DTC U040181 is output

B

A

USE SIMULATION METHOD TO CHECK

B

REPLACE ECM

for A25A-FKS: Click here

for 2GR-FKS: Click here

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