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:

Diagnosis Circuit
DESCRIPTION DTC output mode is set by connecting terminals TC and CG of the DLC3. DTCs are displayed by blinking the SRS warning light. HINT:  When each warning light stays blinking, a ground short in the wiring of terminal TC of the DLC3 or an internal ground short in each ECU is ...

If your vehicle overheats
The following may indicate that your vehicle is overheating. The needle of the engine coolant temperature gauge enters the red zone or a loss of engine power is experienced. (For example, the vehicle speed does not increase.) The warning message indicating overheats is shown on the mult ...

Diagnostic trouble code chart
1. DTCS FOR OCCUPANT CLASSIFICATION SYSTEM If a trouble 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 DTC B1150/23 is detected as a result of troubleshooting for the airbag system, pe ...

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