REMOVAL CAUTION / NOTICE / HINT CAUTION:
PROCEDURE 1. REMOVE PROPELLER SHAFT HEAT INSULATOR 2. REMOVE HEATED OXYGEN SENSOR (for Bank 1 Sensor 2) (a) Disconnect the heated oxygen sensor connector.
3. REMOVE HEATED OXYGEN SENSOR (for Bank 2 Sensor 2)
(b) Using SST, remove the heated oxygen sensor. SST: 09224-00010 |
Toyota Tundra Service Manual > Sfi System: Actuator Supply Voltage Circuit / Open (P0657)
DESCRIPTION The ECM monitors the output voltage to the throttle actuator. This self-check ensures that the ECM is functioning properly. The output voltage usually is 0 V when the ignition switch is turned off. If the output voltage is higher than 7 V when the ignition switch is turned off, the ECM w ...