Operation Check OPERATION CHECK 1. CHECK MIRROR HEATER (a) Turn the ignition switch ON. (b) Check that pressing the rear defogger switch illuminates the indicator and warms the mirror surface. (c) Check that after approximately 15 minutes, the indicator light turns off and the mirror heater deactivates. Parts Location PARTS LOCATION ILLUSTRATION 
Problem Symptoms Table PROBLEM SYMPTOMS TABLE HINT: Use the table below to help determine the cause of the problem symptom. The potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary. Power mirror control system
System Diagram SYSTEM DIAGRAM 
 |
Toyota Tundra Service Manual > Meter / Gauge System: Lost Communication with Brake System Control Module (U0129)
DESCRIPTION The combination meter communicates with the skid control ECU via the CAN line. DTC Code DTC Detection Condition Trouble Area U0129 When either of following conditions is detected: 15 seconds have elapsed since engine started and IG voltage 10.5 V or more No communication with skid contro ...
