Dtc B2797 Communication Malfunction No. 1
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
CHECK KEYS
CHECK DTC OUTPUT
CHECK TRANSPONDER KEY AMPLIFIER
DTC B2797 Communication Malfunction No. 1 |
DESCRIPTION
This DTC is output when an error occurs in communication between the transponder key amplifier and the transponder key ECU.- HINT:
- Some noise is found in the communication line.
DTC No.
| DTC Detection Condition
| Trouble Area
|
B2797
| Keys are positioned too close to each other, or noise occurred in communication line
| - Key
- Transponder key amplifier
- Transponder key ECU assembly
|
WIRING DIAGRAM
INSPECTION PROCEDURE
- NOTICE:
- If the transponder key ECU assembly is replaced, register the key and ECU communication ID.
Check whether the ignition key being used is near other ignition keys, as shown in the illustration. Also, check whether the key ring is in contact with the key grip.
- Result:
Result
| Proceed to
|
Key is near other keys and/or key ring is in contact with key grip.
| A
|
Key is not near other keys and/or key ring is not in contact with key grip.
| B
|
Separate the keys from each other, or remove the key ring.
Delete the DTCs (CAMRY_ACV40 RM000001GV8003X.html).
Insert a key into the ignition key cylinder and remove the key. Repeat for all the other keys of the vehicle.
- OK:
- No code is output.
| 3.CHECK TRANSPONDER KEY AMPLIFIER |
After replacing the transponder key amplifier (CAMRY_ACV40 RM0000025PF001X.html) with a normally functioning amplifier, check that the engine starts.
- OK:
- The engine starts.
| | REPLACE TRANSPONDER KEY ECU ASSEMBLY |
|
|
