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Which wires give constant, ignition and ground on a 2010 Dodge Ram 1500?
On a 2010 Dodge Ram 1500, take constant power from the Red wire at the battery or TIPM, under the hood and ignition from the Pink/White wire at the ignition switch harness, steering column, 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 2010 Dodge Ram 1500. On this truck ignition is at the ignition switch harness on the steering column, and the TIPM under the hood has constant, accessory and several light circuits.
The colors come from the 2009 sheet and a 2010 alarm chart (lower trust) that matches it on ignition, accessory and brake. iDatalink confirms the park light and driver door wires for 2010 to 2012. Our own team has not yet metered these on a 2010 truck, and each row says so.
OBD-II portUnder the driver dash
Best power spotIgnition switch harness
System voltage12V
Ignition typeKey
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Where do I get constant, ignition and ground on a 2010 Dodge Ram 1500?
Take constant, ignition and ground from the same area. On this truck ignition is at the ignition switch harness on the steering column, and constant and accessory are also at the TIPM (the fuse and relay box under the hood).
Option 1 Best constant
At the TIPM
Totally integrated power module, the fuse and relay box under the hood.
Constant
Red
Battery or TIPM, under the hoodAlways hot. No amp rating published.
Ignition
Not on this plug
Use the ignition switch (Option 2)The 2009 sheet gives no ignition wire at the TIPM.
Ground
Body ground
Body or frame metalClean, bare metal only.
Accessory
Dark Blue/Pink
TIPM gray 40-pin plug, pin 26, or the 12V power outletHot in accessory and run.
Run any wire through the firewall with a grommet, and fuse it at the source.
Option 2 Ignition
Ignition switch harness
Steering column, under the driver dash. Key start.
Constant
Light Blue/Red
Ignition switch harness, steering columnAlways hot. From a 2010 alarm chart (lower trust). The 2009 sheet gives Red at the battery or TIPM instead, so meter it.
Ignition
Pink/White
Ignition switch harness, steering columnHot in run and start. The 2009 sheet and the 2010 chart agree.
Ground
Body ground
Body metal under the driver dashClean, bare metal only. Never the battery negative post.
The starter wire is Yellow/Gray (dark gray plug in front of the TIPM, or TIPM brown 40-pin, pin 1). Never tap it for power.
Power wires from an installer wire sheet for a 2009 Ram 1500 on the12volt (fetched twice, matched), with a 2010 alarm chart (lower trust) for the column constant.
What are the turn signal, reverse and light wires on a 2010 Dodge Ram 1500?
Circuit
Wire color
Location and what it does
Left turnNot foundNot yet checked
Not found
Not foundWe found no turn signal colors for 2009 to 2012.
Right turnNot foundNot yet checked
Not found
Not foundWe found no turn signal colors for 2009 to 2012.
Park lightPositive +Not yet checked
White/Light Green
White/Violet
White (switch, negative)
TIPM under the hood; switch input at the headlight switch black 10-pin, pin 1On with the park lights. The White switch input is negative and low-current; iDatalink lists it for 2010 to 2012.
HeadlightNot foundNot yet checked
Not found
Not foundWe found no headlight wire for 2009 to 2012.
ReversePositive +Not yet checked
White/Red
TIPM gray 40-pin plug, pin 5Hot in reverse. From an installer wire sheet for a 2009 Ram 1500 on the12volt.
Dome lightPolarity: meter itNot yet checked
Yellow/White
Instrument clusterFrom a 2010 alarm chart (lower trust). Meter it.
Each chip shows the main insulation color with its stripe. Source: the 2009 sheet and 2010 chart, carried to 2010.
Where are the brake, door, speed and CAN wires on a 2010 Dodge Ram 1500?
Circuit
Wire color
Location and what it does
BrakePositive +Not yet checked
White
Brake switch, above the brake pedalHot with the pedal pressed. The 2009 sheet and 2010 chart agree.
Driver doorNegative -Not yet checked
Purple
Driver kick panelDoor pin input. From the iDatalink guide for 2010 to 2012.
Lock / unlockPolarity: meter itNot yet checked
Violet/Light Green
Passenger door moduleFrom a 2010 alarm chart (lower trust). On later trucks this one wire does both, by resistance, so never just ground it.
Parking brakeNot foundNot yet checked
Not found
Not foundWe found no parking brake wire for 2009 to 2012.
Vehicle speedAC signalNot yet checked
Dark Green/Brown
PCM under the hood, passenger side, pin 32Speed signal. From the 2009 sheet only.
TachNot foundNot yet checked
Not found
Not foundWe found no tach wire for 2009 to 2012.
CAN busDataNot yet checked
White/Light Green (high)
White/Light Blue (low)
Location not givenThe 2009 sheet gives the colors but not where they are. Use the OBD port for data. Never cut or splice them.
Sources: an installer wire sheet for a 2009 Ram 1500 on the12volt, a 2010 alarm wiring chart on ModifiedLife (lower trust), and the iDatalink install guide for 2010 to 2012 trucks. Turn signals, headlight, parking brake and tach were not found for 2009 to 2012.
Which years share wiring with the 2010 Dodge Ram 1500?
This page20102009 sheet plus a 2010 chart and the iDatalink 2010 to 2012 guide.
Same wiring2009, 2011 and 20122009 to 2012 trucks share the TIPM and ignition switch layout. iDatalink covers 2010 to 2012 on one guide. 2011 and 2012 have no year-specific sheet, so they use the 2009 and 2010 colors.
Not this page2013 to 2018The 2013 refresh moved most wires to a new BCM under the dash, with push-button start on some trims. Those years have their own pages.
Where are the fuse boxes and ground points on a 2010 Dodge Ram 1500?
Under the hoodTIPMThe totally integrated power module holds the fuses and relays. We did not find a fuse map we trust; check the lid.
InteriorIgnition switchOn 2009 to 2012 trucks most power is at the TIPM and the ignition switch.
Ground pointsClean body metalWe did not find a published ground point. Use clean, bare body metal, never the battery negative post.
Our team has not yet checked the fuse boxes on a truck.
Where is the OBD-II port on a 2010 Dodge Ram 1500?
OBD II
Diagnostic portOBD-II port: under the driver dashPlug-in GPS trackers and OBD harnesses connect here. Check the port before you plan the install.
Common questions about 2010 Dodge Ram 1500 wiring
What wire is constant power on a 2010 Dodge Ram 1500?
Red at the battery or TIPM, under the hood. Always hot. Meter it before you tap it.
What wire is ignition on a 2010 Dodge Ram 1500?
Pink/White at the ignition switch harness, steering column. Hot in run and start. Meter it before you tap it.
Where is the reverse wire on a 2010 Dodge Ram 1500?
White/Red (positive +) at the TIPM gray 40-pin plug, pin 5. Hot in reverse. Meter it before you tap it.
Where is the brake wire on a 2010 Dodge Ram 1500?
White (positive +) at the brake switch, above the brake pedal. Hot with the pedal pressed. Meter it before you tap it.
Where is the vehicle speed signal on a 2010 Dodge Ram 1500?
Dark Green/Brown at the PCM under the hood, passenger side, pin 32. Speed signal. Meter it before you tap it.
Where is the CAN bus on a 2010 Dodge Ram 1500?
White/Light Green (high) and White/Light Blue (low). The 2009 sheet gives the colors but not where they are.
Which years share wiring with the 2010 Dodge Ram 1500?
2009, 2011 and 2012. 2009 to 2012 trucks share the TIPM and ignition switch layout.
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