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Honda DLC 3-Pin Data Link Connector
The DLC is a 3-pin connector and usually includes three wires, but some models
only have two wires. The 3-pin connectors with all 3 wires, provide power to the
tester, the two wire models do not. When using the Mastertech on a 3-pin connector
with only two wires, the unit has to be plugged into a 12 volt power source.
The 3-pin DLC is usually located close to the 2-pin SCS connector.
DLC Locations:
Located at Right Lower Edge of Dash
94-95 Accord (L4)
92-95 Civic
93-95 del Sol
The 3-Pin DLC connector is on the right.
The 2-Pin connector is on the left is the
service check connector (SCS).
Behind Front of Console
92-95 Preludes
Notice that this is the two wire system
and would require external power to the
Mastertech
Behind Glove Box
95 Odyssey
At Left Kick Panel
94-95.5 Passport
Honda DLC 16-Pin Data Link Connector (OBD2)
In 1995 Honda added OBD-II to the V-6 Accord. All 1996 and later models are
equipped with OBD-II. (Except EDM models) The OBD-II DLC is a 16-Pin connector whose size, shape
and location has been standardized across all manufacturers by standards developed
by the Society of Automotive Engineers (SAE).
OBD-II only uses a maximum of 7 of the 16 pins in the DLC. The manufacturer is
free to use the other pins in any way they want. The ECM can use any of three
protocols (SAE J1850 VPW, SAE J1850 PWM and ISO 9141) to communicate
with a scan tool. Chrysler, all Europeans, and most Asian - including Honda use
the ISO 9141 protocol. Don't worry about this, since an OBD-II scan tool must be
able to distinguish which protocol is being used by the processor and switch to
that protocol automatically.
16-Pin Data Link Connector Locations:
Bottom Left Edge of Dash
(pointing straight down)
Typical Location For:
• 98-00 Accord (All)
• 96-00 Civic
• 96-97 Passport
Behind Ashtray
Typical Location For:
• 95-97 Accord (V6)
• 96-97 Accord (L4)
Behind Front Of Center
Console (behind access plug)
Typical Location For:
• 96-97 Odyssey
Behind Front Of Center
Console (no trim panel
to remove)
Typical Location For:
• 96-97 del Sol
• 97-00 CR-V
Behind Front Of Center
Console (remove trim
panel)
Typical Location For:
• 97-98 Prelude
Behind Beverage Holder
Typical Location For:
• 96 Prelude
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