Toyota RAV4 manuals

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.

DESCRIPTION

INSPECTION PROCEDURE

1 CHECK DTC OUTPUT

  1. Delete the DTC.
  2. Insert the key into the ignition key cylinder.
  3.  Check that no code is output.

OK: No DTC is output.

2 RE-REGISTER KEY

  1. Delete the DTC.
  2.  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:

Removal
1. RECOVER REFRIGERANT FROM REFRIGERATION SYSTEM (See page AC-172) 2. REMOVE FRONT WIPER ARM HEAD CAP (See page WW-4) 3. REMOVE FRONT WIPER ARM RH (See page WW-4) 4. REMOVE FRONT WIPER ARM LH (See page WW-4) 5. REMOVE COWL TOP VENTILATOR LOUVER SUBASSEMBLY (See page WW-4) 6. REMOVE WINDSHIEL ...

Removal
1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINALV Caution: wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation. 2. Remove air fuel ratio sensor (for bank 2 sensor 1) (a) ...

Pressure Control Solenoid "D" Electrical (Shift Solenoid Valve SLT)
DESCRIPTION The linear solenoid valve (SLT) controls the transmission line pressure for smooth transmission operation based on signals from the throttle position sensor and the vehicle speed sensor. The ECM adjusts the duty cycle of the SLT solenoid valve to control hydraulic line pressure co ...

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