Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHRYSLER2003300M V6-3.5L VIN MREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTRELAYS AND MODULES - POWERTRAIN MANAGEMENTRELAYS AND MODULES - COMPUTERS AND CONTROL SYSTEMSBODY CONTROL MODULEDIAGRAMSDIAGRAM INFORMATION AND INSTRUCTIONSCONNECTOR, GROUND AND SPLICE IDENTIFICATION AND LOCATION
2003 Chrysler 300M V6-3.5L VIN M
Connector, Ground and Splice Identification and Location
2003 Chrysler 300M V6-3.5L VIN MSECTION Connector, Ground and Splice Identification and Location
CAUTION: Not all connectors are serviced. Some connectors are serviced only with a harness. A typical example might be the Supplemental Restraint System connectors. Always check parts availability before attempting a repair.
IDENTIFICATION
Connectors, grounds, and splices are identified as follows:
- In-line connectors located in the engine compartment are C100 series numbers
- In-line connectors located in the Instrument Panel area are C200 series numbers.
- In-line connectors located in the body are C300 series numbers.
- Jumper harness connectors are C400 series numbers.
- Grounds and ground connectors are identified with a "G" and follow the same series numbering as the in-line connectors.
- Splices are identified with an "S" and follow the same series numbering as the in-line connectors.
- Component connectors are identified by the component name instead of a number. Multiple connectors on a component use a C1, C2, etc. identifier.
LOCATIONS
Vehicle/Locations contains the master connector/ground/splice location index charts with hyperlinks to the applicable location illustrations. The illustrations contain the connector name (or number)/ground number/splice number and component identification.
The abbreviation T/O is used in the location column to indicate a point in which the wiring harness branches out to a component. The abbreviation N/S means Not Shown in the illustrations.
PLEASE NOTE: The master location index charts contain numerous items that may not be applicable to all vehicle models. If a link on the master location index chart to a figure is not functional, that means that the chart item and/or figure in question does NOT apply to the vehicle model selected.
IDENTIFICATION
Connectors, grounds, and splices are identified as follows:
- In-line connectors located in the engine compartment are C100 series numbers
- In-line connectors located in the Instrument Panel area are C200 series numbers.
- In-line connectors located in the body are C300 series numbers.
- Jumper harness connectors are C400 series numbers.
- Grounds and ground connectors are identified with a "G" and follow the same series numbering as the in-line connectors.
- Splices are identified with an "S" and follow the same series numbering as the in-line connectors.
- Component connectors are identified by the component name instead of a number. Multiple connectors on a component use a C1, C2, etc. identifier.
LOCATIONS
Vehicle/Locations contains the master connector/ground/splice location index charts with hyperlinks to the applicable location illustrations. The illustrations contain the connector name (or number)/ground number/splice number and component identification.
The abbreviation T/O is used in the location column to indicate a point in which the wiring harness branches out to a component. The abbreviation N/S means Not Shown in the illustrations.
PLEASE NOTE: The master location index charts contain numerous items that may not be applicable to all vehicle models. If a link on the master location index chart to a figure is not functional, that means that the chart item and/or figure in question does NOT apply to the vehicle model selected.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.