Vehicle
Wiring Details for your
2004 -2005 Chevrolet Blazer Wiring Diagram |
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Listed below is the vehicle specific wiring diagram for your car alarm, remote starter or keyless entry installation into your 2004 -2005 Chevrolet Blazer . This information outlines the wires location, color and polarity to help you identify the proper connection spots in the vehicle. Please be sure to test all of your wires with a digital multimeter before making any connections. More information on using a multimeter and testing wires please see our Technical Support Area.
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| PART |
COLOR |
LOCATION |
| 12 VOLT
CONSTANT |
RED (+) and RED/WHITE (+) |
IGNITION SWITCH HARNESS |
| STARTER |
YELLOW (+) |
IGNITION SWITCH HARNESS |
| STARTER
2 |
N/A |
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| IGNITION
1 |
PINK (+) |
IGNITION SWITCH HARNESS |
| IGNITION
2 |
WHITE (+) See NOTE *4 |
IGNITION SWITCH HARNESS |
| IGNITION
3 |
N/A |
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| ACCESSORY/HEATER
BLOWER 1 |
ORANGE (+) |
IGNITION SWITCH HARNESS |
| ACCESSORY/HEATER
BLOWER 2 |
N/A |
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| KEYSENSE |
N/A |
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| PARKING
LIGHTS ( - ) |
WHITE (-) |
@ BCM, LIGHT BLUE Plug, Pin A5, See NOTE *1 |
| PARKING
LIGHTS ( + ) |
BROWN (+) |
@ BCM, LIGHT BLUE Plug, Pin B6, See NOTE *1 |
| POWER LOCK |
LIGHT BLUE (Positive (+)) |
@ BCM, BROWN PLug, Pin A4, See NOTE *1 |
| POWER UNLOCK |
WHITE (Positive (+)) |
@ BCM, BROWN Plug, Pin A3, See NOTE *1 |
| DOOR TRIGGER |
See NOTE *2 |
@ BCM, See NOTE *1 |
| DOMELIGHT
SUPERVISION |
GRAY/BLACK (-) |
@ BCM, LIGHT BLUE Plug, Pin A3, See NOTE *1 |
| TRUNK RELEASE |
BLACK (-) |
@ BCM, PURLPLE, Pin B1 Plug, See NOTE *1 |
| SLIDING
POWER DOOR |
N/A |
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| HORN |
BLACK (-) |
@ BCM, BROWN Plug, Pin A9, See NOTE *1 |
| TACH |
WHITE |
@ PCM, GREEN Plug, Pin 10, See NOTE *3 |
| WAIT TO
START LIGHT |
N/A |
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| BRAKE |
WHITE (+) |
@ SWITCH ABOVE BRAKE PEDAL |
| FACTORY
ALARM DISARM |
LIGHT GREEN (-) |
@ BCM, PURPLE Plug, Pin B3, See NOTE *1 |
| ANTI-THEFT |
YELLOW (+), ORANGE/BLACK (-) and RED/WHITE (Not used) |
GM's PASSLOCK 2 System, these wires exit the Ignition Switch Tumbler together and are in the Main Ignition Switch Harness in the Column. |
| EXTRA
INFORMATION |
| NOTE *1 the BCM is located in the Center Console, just below the Radio.
NOTE *2 the DRIVERS DOOR is a TAN (-) PURPLE Plug, Pin B4 and the PASSENGER DOOR is a ORANGE (-) PURPLE Plug, Pin B2. The REAR DOORS and HATCH use the same wire a DARK BLUE/WHITE (-) LIGHT BLUE Plug, Pin B11. When connecting to an ALARM SYSTEM, use all 3 wires and DIODE ISOLATE See DIAGRAM.
NOTE *3 the PCM is located on the Passenger side fender.
NOTE *4 IMPORTANT !!!!! this wire MUST BE CONNECTED as IGNITION #2 for REMOTE STARTING!!!!!!
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