If any of the electrical components do not operate, a fuse may
have blown. If this happens, check and replace the fuses as necessary.
1. Turn the engine switch off. 2. Open the fuse box cover. Engine compartment Push the tab in and lift the cover off. Under the instrument panel Remove the cover. 3. Remove the fuse with the pullout tool. Only type A fuse can be removed using the pullout tool. 4. Check if the fuse is blown.
Type A and B: Replace the blown fuse with a new fuse of an appropriate amperage rating. The amperage rating can be found on the fuse box cover. Type C: Contact your Toyota dealer. Type A Type B Type C ■After a fuse is replaced
■If there is an overload in a circuit The fuses are designed to blow, protecting the wiring harness from damage.
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Toyota Tundra Service Manual > Sfi System: Oxygen Sensor Heater Control Circuit Low (Bank 1 Sensor 2) (P0037,P0038,P0057,P0058,P0141,P0161,P102D,P105D)
DESCRIPTION Refer to DTC P0136 (See page ). HINT: When any of these DTCs are stored, the ECM enters fail-safe mode. The ECM turns off the Heated Oxygen (HO2) sensor heater in fail-safe mode. Fail-safe mode continues until the ignition switch is turned off. The ECM provides a pulse width modulated co ...