Maintenance manual for sunray hfc4da1-2c china-IV diesel engines
92
Terminal
No.
Description
Terminal
No.
Description
K13 K60 Accelerator pedal sensor signal 2
K14 K61
K15 K62
K16 K63 Earthing signal of air flowmeter
K17 K64
K18 K65
K19 Vehicle speed signal input K66 CAN communication
K20 Intake flow signal of air flowmeter K67 Grounding of accelerator pedal sensor 1
K21 Exhaust brake switch control K68
K22 Power supply 2 of accelerator pedal sensor K69 Control signal of turbocharger actuator
K23 5V power supply of EGR K70 Malfunction indicator lamp
K24 K71 OBD indicator lamp
K25 K72
K26 K73
K27 5V power supply of pressure difference sensor K74 Cruise control mode
K28 Power supply 1 of accelerator pedal sensor K75
K29 Exhaust brake relay control K76
K30 Anti-theft cable K77 Water level signal
K31 Position signal of EGR K78 Auxiliary brake switch
K32 K79
K33 K80 Earthing of pressure difference sensor
K34 K81 Accelerator pedal sensor signal 1
K35 K82
K36 K83
K37 Air conditioner switch signal K84
K38 Main brake switch K85
K39 Earthing of EGR position sensor K86
K40 Cruise control mode K87 CAN communication
K41 K88
K42 K89
K43 Engine speed signal output K90 Preheating control signal
K44 Line K diagnosis K91 Preheating indicator lamp
K45 K92
K46 Ignition switch power switch control K93
K47 Main relay control K94
4) Malfunction Mode
Unstable idling, poor acceleration, start failure, high idling, out-of-tolerance of emission, difficult start, failure of air
conditioner, control failure of fuel injector, engine flameout, etc.
Failure arising from the burnout of ECU internal parts due to electric overload of external devices; rusting of circuit
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