Page 2277 - Foton Workshop Manual - Aumark (BJ1099)
P. 2277

DIAGNOSIS-HEATER & AIR CONDITIONING                          62-225
                 REFRIGERATION SYSTEM: NO REFRIGERATION (DIESEL)



                 Circuit Diagram



                                                             Ignition switch  Ignition switch  Battery
                                                               START        ON                                      62







                                                                         F17  F33
                                Air conditioning           Engine ECU    5A   5A
                                 system central ECU switch
                                pressure switch feedback Air conditioning  C99
                                 signal input  terminal  signal input
                                   C99       C99    C99
                                                                       2    3          Interior fuse
                                     41        87     20                                box C05
                                                                                   Start
                                     Br        Lg     GO-                         cut-off
                                                                                 relay R04
                                      A301      A305                   1    5  4
                                    37       14
                                      C201      C205
                               1     3
                                 Low
                              + pressure
                              -      Medium                             B
                                    +  pressure
                       OB-                                                     13  A304
                                        Pressure
                                High                                             C204
                               pressure  switch
                              +     -   A01                            C01
                              -
                        A301
                      8                                A301
                        C201                         9  C201
                               4      2
                               B
                              A07

                       B8                             B3
                    High/low pressure           AC request signal
                     switch signal

                                                                            A  /  C            F20
                                                                            controller         7.5A
                                                                            C42
                      Interior  Interior  Interior  Rear     Front
                     temperature  temperature temperature  evaporator  evaporator                          Engine
                     Small fan+  Small fan-  sensor  thermistor  thermistor  Sensor ground  2  3         compartment
                        A14       B14  B5         A6           A5        B4                          A/C  fuse boxA40
                                                  VW-          V                                   compressor
                        G         YG-  VG-         C304                  BL-                       relay R14
                                                 6  D204
                                                                                        1     5
                              1   2   3           1            1

                                         Interior     BCM
                               M       temperature  body control  Thermistor
                                                                   C46
                                       sensor C63
                                                    module C57
                                                                                                        A2 10
                                                                                                      1
                                                                                                        E2 01
                                      4
                                                                                                       R
                                                  2            2                          71
                                                                                        C99            1
                                      BL-         BL-          BL-                      A/C                 Compressor
                                                                                     approval signal  Engine  electromagnetic
                                                                                        ECU   ECUA11         clutch
                                                                                                              E51
                                                                                                  Self grounding
                                                                                                          fuwx62650

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