Toyota Camry (XV70): How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT

HINT:

• Before performing troubleshooting for the front camera system, perform troubleshooting for the pre-collision system.

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• If a pre-collision system related warning message is displayed on the multi-information display, refer to How to Proceed with Troubleshooting for the pre-collision system.

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• Use the following procedure to troubleshoot the front camera system.
• *: Use the Techstream.

PROCEDURE

1.	VEHICLE BROUGHT TO WORKSHOP

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2.	CUSTOMER PROBLEM ANALYSIS

HINT:

• In troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time the malfunction occurred.
• Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases.
• The following 5 items are important points for problem analysis:

  What	Vehicle model, system name
  When	Date, time, occurrence frequency
  Where	Road conditions
  Under what conditions?	Driving conditions, weather conditions
  How did it happen?	Problem symptoms

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3.

PRE-CHECK

(a) Measure the battery voltage.

Standard voltage:

11 to 14 V

HINT:

If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step.

(b) Check the fuses and relays.

(c) Check the connector connections and terminals to make sure that there are no abnormalities such as loose connections, deformation, etc.

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4.	CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

(a) Using the Techstream, check for CAN communication system DTCs.

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Result	Proceed to
CAN DTCs are not output	A
CAN DTCs are output	B

B

GO TO CAN COMMUNICATION SYSTEM

A

5.	CHECK FOR DTC*

(a) Using the Techstream, check for DTCs.

Chassis > Front Recognition Camera > Trouble Codes

(b) If a DTC is output, record the DTC.

Result	Proceed to
DTCs are not output	A
DTC C1AA800 is output	B
DTC other than C1AA800 is output	C

A

GO TO STEP 7

B

GO TO DIAGNOSTIC TROUBLE CODE CHART (C1AA800)

C

6.	RECONFIRM DTC OUTPUT*

(a) Using the Techstream, clear the DTCs.

Chassis > Front Recognition Camera > Clear DTCs

(b) Reproduce the vehicle conditions that were present when the DTCs that were noted were stored.

HINT:

Refer to each corresponding DTC for details on the detection conditions.

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(c) Using the Techstream, check for DTCs.

Chassis > Front Recognition Camera > Trouble Codes

Result	Proceed to
DTCs are not output	A
DTCs are output	B

B

GO TO DIAGNOSTIC TROUBLE CODE CHART

A

7.	CHECK VEHICLE CONTROL HISTORY*

(a) Using the Techstream, check for Vehicle Control History (RoB).

Chassis > Front Recognition Camera > Utility

Tester Display
Vehicle Control History (RoB)

(b) Make a note of the output Vehicle Control History (RoB).

Result	Proceed to
Vehicle Control History (RoB) is not output	A
Vehicle Control History (RoB) other than X2015 and X201C is output	B
Vehicle Control History (RoB) X2015 or X201C is output	C

A

USE SIMULATION METHOD TO CHECK

C

GO TO VEHICLE CONTROL HISTORY (X2015 or X201C)

B

8.	RECONFIRM VEHICLE CONTROL HISTORY*

(a) Using the Techstream, clear the Vehicle Control History (RoB).

Chassis > Front Recognition Camera > Utility

Tester Display
Vehicle Control History (RoB)

(b) Using the Techstream, check for Vehicle Control History (RoB).

Chassis > Front Recognition Camera > Utility

Tester Display
Vehicle Control History (RoB)

Result	Proceed to
Vehicle Control History (RoB) is not output	A
Vehicle Control History (RoB) is output	B

A

USE SIMULATION METHOD TO CHECK

B

GO TO VEHICLE CONTROL HISTORY

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