| INSTALLATION CAUTION / NOTICE / HINT HINT: 
 PROCEDURE 1. INSTALL FRONT DOOR INSIDE LOCKING CABLE ASSEMBLY LH 
 2. INSTALL FRONT DOOR LOCK REMOTE CONTROL CABLE ASSEMBLY LH 
 3. INSTALL FRONT DOOR LOCK ASSEMBLY LH 
 4. INSTALL FRONT DOOR GLASS SUB-ASSEMBLY LH 
 5. INSTALL FRONT DOOR REAR LOWER FRAME SUB-ASSEMBLY LH 
 6. INSTALL FRONT DOOR SERVICE HOLE COVER LH 
 7. INSTALL FRONT NO. 1 DOOR TRIM BRACKET 
 8. INSTALL FRONT DOOR TRIM BOARD SUB-ASSEMBLY LH 
 9. INSTALL FRONT DOOR ARMREST COVER LH 10. INSTALL FRONT DOOR LOWER FRAME BRACKET GARNISH LH 
 11. INSTALL FRONT UPPER ARMREST BASE PANEL LH 
 12. INSTALL FRONT DOOR INSIDE HANDLE BEZEL PLUG LH 
 13. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL | 
Toyota Tundra Service Manual > Meter / Gauge System: Lost Communication with ECM / PCM "A" (U0100)
   DESCRIPTION The combination meter communicates with the ECM via the CAN line. DTC Code DTC Detection Condition Trouble Area U0100 When either of following conditions is detected: Vehicle speed 5 km/h (3 mph) or more and IG voltage 10.5 V or more No communication with ECM continues for 3 seconds or m ...