OBD-II Cable Wiring Diagram - Advanced Vehicle Technologies

OBD-II Cable Wiring Diagram - Advanced Vehicle Technologies
ADVANCED VEHICLE TECHNOLOGIES, Inc.
Inc.
AV
18 August, 1999
OBD-II Cable and Connector Information
The OBD-II (On-Board Diagnostics, phase two) law requires a standardized connector in every
car and light truck. Additionally, the law requires that the vehicle support at least one of three
protocols: J1850 VPW, J1850 PWM, or ISO 9141-2.
The standardized connector is specified by SAE standard J1962.
The J1962 connector is a 16-pin unit. Only 7 of the pins are standardized.
All other pins are available for use by the manufacturer and vary from vehicle to vehicle.
This diagram shows the pin locations on the cable end connector of an OBD-II connector (that
mates to the vehicle).
8
7
6
5
4
3
2
1
16
15
14
13
12
11
10
9
OBD-II Connector
J1962
Cable connector.
Pins pointing toward you.
The diagram on the next page shows the wiring of the AVT supplied OBD cable.
Note that only the standardized signals are shown on their respective pins.
1509 Manor View Road, Davidsonville, MD
+1-410-798-4038 (voice)
http://www.avt-hq.com
21035
USA
+1-410-798-4308 (fax)
support@avt-hq.com
OBD-II Mating Connector
per SAE J1962
DA-15S
Connector
1
1
J1850 Bus +
2
3
2
3
4
5
Chassis ground
4
Signal ground
5
6
6
To Vehicle
K-line of ISO 9141-2
7
8
7
8
9
9
J1850 Bus -
10
10
11
11
12
12
13
13
14
14
L-line of ISO 9141-2
15
16
15
unswitched battery +
Notes:
Length: 10 feet
1. All connections are shown.
2. Wires are 22 awg.
3. Outer shield is tied to pin as shown.
4. DA-15S connector is industry standard type.
5. Only OBD-II Signals are noted (bold and boxed).
Advanced Vehicle Technologies, Inc.
OBD-II Cable
Wiring Diagram
7 March, 1999
Page 2
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