Toyota RAV4 manuals

Toyota Sienna Service Manual: DTC check / clear

NOTICE: All the stored DTCs and freeze frame data are erased if:

  1.  the ECM is changed from normal mode to check mode or vice versa; or 2) the ignition switch is turned from ON to ACC or off while in check mode.

    Before changing modes, always check and make a note of any DTCs and freeze frame data.

HINT:

1. CHECK DTC (Using an intelligent tester)

CHECK DTC (Using an intelligent tester)

  1.  Connect the intelligent tester to the DLC3.
  2.  Turn the ignition switch to the ON position.
  3.  Turn the tester ON.
  4.  Select the following menu items: DIAGNOSIS / ENHANCED OBD II / DTC INFO / CURRENT CODES.
  5.  Check for the DTC(s) and freeze frame data, and then write them down.
  6.  Check the details of the DTC(s).

2. CLEAR DTC (Using the intelligent tester)

  1.  Connect the intelligent tester to the DLC3.
  2.  Turn the ignition switch to the ON position.
  3.  Turn the tester ON.
  4.  Select the following menu items: DIAGNOSIS / ENHANCED OBD II / DTC INFO / CLEAR CODES.
  5.  Press the YES button.

3. CLEAR DTC (Without using an intelligent tester)

  1.  Perform either one of the following operations:
  1. Disconnect the negative battery cable for more than 1 minute.
  2.  Remove the EFI No. 1 and ETCS fuses from the Relay Block (R/B) located inside the engine compartment for more than 1 minute.
Diagnosis system
1. DESCRIPTION  When troubleshooting OBD II (On-Board Diagnostics) vehicles, an intelligent tester (complying with SAE J1987) must be connected to the DLC3 (Data Link Connector 3) o ...

Freeze frame data
1. DESCRIPTION  The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in dete ...

Other materials:

Open in Occupant Classification ECU Battery Positive Line
DTC B1794 Open in Occupant Classification ECU Battery Positive Line DESCRIPTION This circuit consists of the occupant classification ECU and the power source circuit (battery, fuse, wire harness). DTC B1794 is recorded when a malfunction is detected in the occupant classification ECU or t ...

Diagnostic trouble code chart
1. DTCS FOR AIRBAG SYSTEM If a malfunction code is displayed during the DTC check, check the circuit listed for the code in the table below (Proceed to the page listed for that circuit). HINT:  When the SRS warning light remains on and the DTC output is the normal system code, a volta ...

Inspection
1. INSPECT BRAKE CYLINDER AND PISTON (a) Check the brake cylinder bore and front disc brake piston for rust or scoring. 2. INSPECT PAD LINING THICKNESS (a) Using a ruler, measure the pad lining thickness. Standard thickness: 12.0 mm (0.472 in.) Minimum thickness: 1.0 mm (0.039 in.) 3. ...

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