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PS2 Heavy Duty
34
Chapter IV
Definition of diagnostic seat and Communicational protocols
A. common definition of diagnostic Block diagram and pin
⑴
The standard OBD II Diagnostic Block Type:
⑵
Round 16PIN diagnostic Block (Denso,
Bosch, Cummins):
⑶
⑶
⑶
⑶
Round
37PIN
diagnostic
Block
gMANg
您
Terminals:
2 # / 10 #: 2 and 10 for SAE diagnosis
4 # / 5 #: Negative
6 # / 14 #: 6 and 14 for CAN diagnosis
7 # / 15 #: ISO, KWP K / ISO, KWP L diagnosis
16 #: positive (12V/24V)
您
Terminals:
# 1: Positive
2 #: Negative
8 # / 7 # / 5 #: K Diagnosis
11 #: CAN H diagnosis
12 #: CAN L Diagnosis
您
Terminals:
Other pins (not for diagnostic features)
A #: negative
D #: positive
a #: Engine Control System K line
Z #: Engine Control System L line
L #: auxiliary heater K line
P #: auxiliary heater L line
U #: Reducer K Line
V #: Reducer L Line