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stops between an ECU and the main body ECU for 10 seconds or more, the ECU disappears For communication stop mode of ECUs connected to the CAN MS bus circuit, refer to the B: GO TO DTC U1002 FLOWCHART (See DTC U1002: LOST COMMUNICATION WITH C: GO TO MAIN BODY ECU COMMUNICATION STOP MODE FLOWCHART (See MAIN D: GO TO PROBLEM SYMPTOMS TABLE (See PROBLEM SYMPTOMS TABLE ) E: GO TO OPEN IN ONE SIDE OF CAN BRANCH WIRE FLOWCHART (See OPEN IN ONE A: Go to Next Step 9. CHECK COMMUNICATION MALFUNCTION DTC (PAST DTC CHECK)* a. Select "CAN Bus Check" from the "System Select". b. Write down all of the DTCs stored in each ECU. HINT: If there are communication malfunction DTCs stored but the intelligent tester's or For V bus main wire malfunctions, related ECUs are also detected. Therefore, determine the For MS bus malfunctions, DTCs are output based on the detection of communication stop INSPECTION RESULT REFERENCE TABLE B: GO TO DTC U1002 FLOW CHART (See DTC U1002: LOST COMMUNICATION WITH Inspection Result Proceed to ECU connected to V bus main wire has stored communication malfunction code (V bus A Main body ECU outputs MS bus malfunction code (U1002) (MS bus past malfunction). B Main body ECU outputs malfunction code other than MS bus malfunction code C
2009 Toyota Tundra 2009 ACCESSORIES & EQUIPMENT CAN Communication - Tundra
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