Toyota Sienna Service Manual: Transponder Chip Malfunction
DTC B2793 Transponder Chip Malfunction
DESCRIPTION
This DTC is output when a malfunction is found in the key during the key code registration or the key code is not registered normally. Replace the key when the key code registration is not performed normally and this DTC is detected.
INSPECTION PROCEDURE
1 CHECK DTC OUTPUT
- Delete the DTC.
- Insert the key into the ignition key cylinder.
- Check that no code is output.
OK: No DTC is output.
2 RE-REGISTER KEY
- Delete the DTC.
- Re-register the key and insert this key into the ignition key cylinder.
Check that the engine starts with the key.
OK: The engine starts
REPLACE KEY
Antenna Coil Open / Short
DTC B2784 Antenna Coil Open / Short
DESCRIPTION
The transponder key coil is built into the transponder key amplifier and
receives a key code signal from
the transponder chip in the key. This sign ...
Unmatched Encryption Code
DTC B2794 Unmatched Encryption Code
DESCRIPTION
This DTC is output when a key with an incomplete key code is inserted into
the ignition key cylinder.
DTC No.
DTC Detection Condi ...
Other materials:
Short to B+ in Driver Side Squib 2nd Step Circuit
DTC B1183/22 Short to B+ in Driver Side Squib 2nd Step Circuit
DESCRIPTION
The driver side squib 2nd step circuit consists of the center airbag sensor
assembly, the spiral cable and
the steering pad.
The circuit instructs the SRS to deploy when deployment conditions are met.
DTC B1183/22 ...
DSP Error
DTC 44-78 DSP Error
DESCRIPTION
DTC No.
DTC Detection Condition
Trouble Area
44-78
An error occurs during the decode process (MP3 /
WMA).
-
INSPECTION PROCEDURE
HINT:
After the inspection is completed, clear the DTCs.
NOTICE:
Th ...
Inspection
1. INSPECT OIL PUMP ASSEMBLY
(a) Turn the drive gear with the 2 screwdrivers and
make sure that it rotates smoothly.
NOTICE:
Be careful not to damage the oil seal lip.
2. INSPECT CLEARANCE OF OIL PUMP ASSEMBLY
(a) Push the driven gear to one side of the body.
(b) Using ...
