Heavy duty tractor. Key start. 9-pin diagnostic port.
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Which wires give constant, ignition and ground on a 2007 Volvo VNL and VNM?
On a 2007 Volvo VNL and VNM, take constant power from the 9-pin diagnostic connector, driver side kick panel, cavity B, wire stamped 402 (wire color not published), ignition from the 9-pin diagnostic connector, driver side kick panel, cavity J, wire stamped 196DR (wire color not published), and ground to clean, bare body metal. Meter every wire first.
Written by API Signal, fleet GPS and camera installers for 35+ years across Georgia, South Carolina and North Carolina, installing every major telematics and camera brand. Every wire on this page lists its source.
Test every wire with a meter before you tap it
No wiring information is ever guaranteed. Colors and locations change with trim, options and build date, and the manufacturer can change them in the middle of a model year. We share this as a starting point for installers, and you are responsible for confirming every connection on the truck in front of you.
This page covers the 2007 Volvo VNL and VNM built from November 2005, before Volvo changed to 2007 emissions engines. A truck with a 2007 emissions engine uses a newer wiring diagram, so check the build date first.
Volvo identifies these wires by a number stamped into the insulation, not by color. The only colors Volvo prints are yellow and green for the J1939 data wires. Every wire number on this page is from the Volvo service manual. Our own team has not yet metered these on a 2007 truck.
9-pin diagnostic portDriver side kick panel
Best power spot9-pin diagnostic connector
System voltage12V
Ignition typeKey
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Where do I get constant, ignition and ground on a 2007 Volvo VNL and VNM?
Volvo does not color code these wires. It stamps the circuit number into the insulation every 3 inches, so read the number on the wire.
Option 1 Constant, ignition and ground
9-pin diagnostic connector
Round connector in the driver side kick panel.
Constant
Color not printed. Wire stamped 402
9-pin diagnostic connector, driver side kick panel, cavity B, wire stamped 402Battery positive. Volvo prints it as B+.
Ignition
Color not printed. Wire stamped 196DR
9-pin diagnostic connector, driver side kick panel, cavity J, wire stamped 196DRIgnition. Hot with the key in the drive position.
Ground
Color not printed. Wire stamped 0Z
9-pin diagnostic connector, driver side kick panel, cavity A, wire stamped 0ZBattery negative. Volvo prints it as B-. Volvo says white wires are ground.
Pins and wire numbers from Volvo. This is the round 9-pin connector. A plug-in 9-pin harness gets all three without cutting a wire.
Option 2 Constant, ignition and accessory
Ignition switch connector
8-pin connector at the key switch.
Constant
Color not printed. Wire stamped 243
Ignition switch connector, pin 1, wire stamped 243+12V battery supply to the key switch.
Ignition
Color not printed. Wire stamped 196DR
Ignition switch connector, pin 5, wire stamped 196DRIgnition (drive) feed. Hot with the key in the drive position.
Accessory
Color not printed. Wire stamped 195
Ignition switch connector, pin 3, wire stamped 195Accessory power feed. Hot in the radio and accessories key position.
Ground
Ground stud
Ground studs inside the cabSix studs: three near the climate unit and three above the accelerator pedal.
Pins and wire numbers from Volvo. Pin 4 (wire 196) is the ignition and auxiliary feed. Pin 6 (wire 284) is the starter relay feed and pin 7 (wire 245) is the preheat request. Leave pins 6 and 7 alone.
From Volvo's Group 30 Electrical General service manual for the VN and VHD (from build date November 2005). Volvo's wire rule for these trucks: black, numbered wires are fused, powered circuits. White wires are ground. Red wires are hot at all times and protected by fusible links.
What are the turn signal, reverse and light wires on a 2007 Volvo VNL and VNM?
Circuit
Wire color
Location and what it does
Left turnPolarity: meter itNot yet checked
Color not printed. Wire stamped 112
Turn signal stalk connector on the left of the column, pin 12Left turn signal from the stalk to the light control module. Volvo prints the wire number, not a color.
Right turnPolarity: meter itNot yet checked
Color not printed. Wire stamped 113
Turn signal stalk connector on the left of the column, pin 13Right turn signal from the stalk to the light control module. Pin 14 (wire 0XL-4) is the common ground.
Park lightNot foundNot yet checked
Not found
Not foundWe found no source for this wire.
HeadlightNot foundNot yet checked
Not found
Not foundWe found no source for this wire.
ReverseNot foundNot yet checked
Not found
Not foundWe found no source for this wire.
Dome lightNot foundNot yet checked
Not found
Not foundWe found no source for this wire.
Each chip shows the main insulation color with its stripe. Source: Volvo's Group 30 Electrical General service manual for the VN and VHD (from build date November 2005).
Where are the brake, door, speed and CAN wires on a 2007 Volvo VNL and VNM?
Circuit
Wire color
Location and what it does
BrakeNot foundNot yet checked
Not found
Not foundWe found no source for this wire.
DoorsNot foundNot yet checked
Not found
Not foundWe found no source for this wire.
Parking brakeNot foundNot yet checked
Not found
Not foundWe found no source for this wire.
HazardNot foundNot yet checked
Not found
Not foundWe found no source for this wire.
Starter relay feedPositive +Not yet checked
Color not printed. Wire stamped 284
Ignition switch connector, pin 6Hot only while cranking. Not a power source.
Vehicle speedNot foundNot yet checked
Not found
Not foundWe found no source for this wire.
J1939 dataDataNot yet checked
Yellow (CAN high, wire 406C)
Green (CAN low, wire 407C)
9-pin diagnostic connector, driver side kick panel, cavities C and DVolvo prints yellow for CAN high and green for CAN low. Use a plug-in harness for data and do not cut these wires.
J1708 dataDataNot yet checked
Color not printed. Wires stamped 400G and 401G
9-pin diagnostic connector, driver side kick panel, cavities F and GJ1708 data link. Volvo prints the wire numbers, not colors.
Source: Volvo's Group 30 Electrical General service manual for the VN and VHD (from build date November 2005). Brake, park light, reverse, door, parking brake and speed wires were not found.
Which years share wiring with the 2007 Volvo VNL and VNM?
This page2007VNL and VNM built from November 2005, before the 2007 emissions engines.
Same wiring2006Volvo's manual is marked from build date 11.2005. Check the build date on the truck.
Not this page2004, 2005, and 2008 to 2017Volvo changed fuse numbers in 2004 and 2005, and trucks with 2007 emissions engines use a newer wiring diagram with different wire numbers. We have not confirmed those.
Where are the fuse boxes and ground points on a 2007 Volvo VNL and VNM?
InteriorFuse and relay center, center of the dash just above the engine coverMini fuses, relays and micro relays. Volvo says to use the decal inside the cover for fuse locations and ratings.
Power studsMain cab power studs in the cab pass-throughStud 1 feeds wire 1 and stud 2 feeds wire 1V. These feed the relays and fuse bus bars.
Ground pointsSix ground studs inside the cabThree near the climate unit and three above the accelerator pedal. More cab ground studs are in the engine compartment, on the cab just above the cab pass-through.
From the Volvo service manual. Volvo changed fuse numbers between editions of this manual, so no fuse number is given here. Read the decal inside the cover.
Where is the 9-pin diagnostic port on a 2007 Volvo VNL and VNM?
9-PIN
Diagnostic port9-pin diagnostic port: driver side kick panelPlug-in GPS trackers and J1939 devices connect here.
Common questions about 2007 Volvo VNL and VNM wiring
Which years share wiring with the 2007 Volvo VNL and VNM?
2006. Volvo's manual is marked from build date 11.2005.
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