Page 371 - Foton Workshop Manual - Tunland (AT)
P. 371

DIAGNOSTICS - ENGINE CONTROL SYSTEM                          04-225

                                                           (f)    Use a multimeter to measure the resistance
                                                                  between the pin 5 of starting motor relay R3
                                                                  and the pin 1 of starting motor connector
                                                                  K005.
                            F11  F12  F13  F16  F15  F14  F30  F17
                        F29   2    2   2   F18                    Standard resistance
                           3  5  3  5  3  5  4  A020
                              4 R3  R13  4  R7 1  F19
                              1    1       F20
                                         2
                            85    85
                           30   30     3  5  4              Multimeter connection                                    04
                             R4   R16    R6 1
                            86  87  86  87                                                 Standard value
                                                                       pin
                                                              R3(5)- K005(1)                    <2 Ω
                                                 K005
                                             1
                                                 ftwxd041185


                                                           (g)    Use a multimeter to measure the resistance
                                                                  between the pin 2, 5 of starting motor relay
                                                                  R3 and the ground respectively.。

                                                                  Standard resistance
                            F11  F12  F13  F16  F15  F14  F30  F17
                        F29   2    2   2   F18  A020
                           3  5  3  5  3  5  4
                              4    4       F19
                               R3  R13  R7 1
                              1    1       F20              Multimeter connection
                                         2                                                 Standard value
                            85    85
                           30   30     3  5  4
                             R4   R16    R6 1                          pin
                               87   87
                            86    86
                                                                R3(2)- ground                 > 10 MΩ
                                                                R3(5)- ground                 > 10 MΩ

                                                 ftwxd041183

                 Is the inspection result normal?
                 YES>To step 6.

                 No > Maintain or replace the harness.

                 6 .    Replace the starter
                 (a)    Replace the starter.
                 (b)    Use a diagnostic apparatus to perform DTC verification procedures.
                 (c)    Implement the steps to read sensor data stream.
                 (d)    Check whether DTC exists.

                 Is the inspection result normal?
                 YES>Replace the starter.

                 NO >To step 7.

                 7 .    Replace ECM
                 (a)    Replace ECM.
                 (b)    Use a diagnostic apparatus to perform DTC verification procedures.
                 (c)    Implement the steps to read sensor data stream.





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