Page 133 - Foton Workshop Manual - Auman EST-M
P. 133

Diagnosis - Diagnosis-fault diagnosis of electronic and electrical parts   DI - 79

              Check if the result is ok?                                                                          IN
              Yes>go to Step 4.

              No>repair ECM communication CAN wire.                                                               DI
              4. Check the power source and grounding of ECM.

              a. Check the power circuit of ECM.                                                                  EG
              b. Check the ground circuit of ECM.
              Check if the result is ok?                                                                          TR
              Yes>go to Step 5.

              NO>Repair or replace the failed harness.                                                            AX
              5. Replace ECM
                                                                                                                  FR
              a. Replace ECM.

              b. Read the indicated engine data of diagnostic unit. Ensure that the diagnostic unit can communicate with
              ECM.                                                                                                ST


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