DTC CHECK / CLEAR NOTICE: When the diagnosis system is changed from normal mode to check mode or vice versa, all DTCs and freeze frame data recorded in normal mode are cleared. Before changing modes, always check and make a note of DTCs and freeze frame data. HINT:
![]() ![]() 1. CHECK DTC (a) Connect the Techstream to the DLC3. (b) Turn the ignition switch to ON. (c) Turn the Techstream on. (d) Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. (e) Check the DTC(s) and freeze frame data, and then write them down. (f) Check the details of the DTC(s) (See page
2. CLEAR DTC (Pending and Current DTC) (a) Connect the Techstream to the DLC3. (b) Turn the ignition switch to ON. (c) Turn the Techstream on. (d) Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. (e) Clear the DTCs. 3. CLEAR DTC (Pending and Current DTC without using Techstream) (a) Perform either of the following operations: (1) Disconnect the cable from the negative (-) battery terminal for more than 1 minute. (2) Remove the EFI NO. 1 and ETCS fuses from the engine room relay block located inside the engine compartment for more than 1 minute. 4. CLEAR PERMANENT DTC HINT: Even if the following procedure is not performed, permanent DTCs are cleared if no malfunction is detected during 3 consecutive driving cycles. ![]() (a) Connect the Techstream to the DLC3. (b) Turn the ignition switch to ON. (c) Turn the Techstream on. (d) Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. (e) Check if permanent DTCs are stored. HINT: If permanent DTCs are not output, it is not necessary to continue this procedure. (f) Clear DTCs. (g) Perform the universal trip.
(h) Turn the ignition switch off. (i) Wait 15 seconds. (j) Turn the ignition switch to ON. (k) Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. (l) Check that the permanent DTCs have been cleared. HINT:
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Toyota Tundra Service Manual > Sfi System: Fail-safe Chart
FAIL-SAFE CHART If any of the following DTCs are stored, the ECM enters fail-safe mode to allow the vehicle to be driven temporarily. DTC Component Fail-Safe Operation Fail-Safe Deactivation Condition P0011, P0021, P0015 and P0025 VVT system Idle up (Control of combustion worsening) Stopping fuel-cu ...