DISASSEMBLY CAUTION / NOTICE / HINT HINT:
PROCEDURE 1. REMOVE REAR TURN SIGNAL LIGHT BULB
(a) Turn the rear turn signal light bulb socket with the rear turn signal light bulb in the direction indicated by the arrow to remove them as a unit.
2. REMOVE BACK UP LIGHT BULB
(a) Turn the back up light bulb socket with the back up light bulb in the direction indicated by the arrow to remove them as a unit.
3. REMOVE TAIL AND STOP LIGHT BULB
(a) Turn the tail and stop light bulb socket with the tail and stop light bulb in the direction indicated by the arrow to remove them as a unit.
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Toyota Tundra Service Manual > Touch Select 2-4 And High-low System: Lost Communication with ECM / PCM "A" (U0100,U0122)
DESCRIPTION This DTC is detected if communication is lost between the ECM and skid control ECU. DTC Code DTC Detection Condition Diagnosis Condition Malfunction Status Malfunction Time Other Trouble Area U0100 Ignition switch ON Communication is lost between ECM and 4 wheel drive control ECU 5 secon ...