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 MANUALSCHEVROLET2012SILVERADO 2500 2WD V8-6.6L DSL TURBOREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSRELAYS AND MODULES - COMPUTERS AND CONTROL SYSTEMSBODY CONTROL MODULELOCATIONSCONNECTOR LOCATIONS
2012 Chevrolet Silverado 2500 2WD V8-6.6L DSL Turbo
Connector Locations
2012 Chevrolet Silverado 2500 2WD V8-6.6L DSL TurboSECTION Connector Locations
Ground Views
G301, G302, G303, and G304 (Extended Cab)
1 - X700
2 - G303
3 - X303
4 - Inflatable Restraint Sensing and Diagnostic Module (SDM) Connector
5 - X501 (YE9 without AN3/DL3)
6 - X275
7 - X208 (A48)
8 - X202
9 - X500 (YE9 without AN3/DL3)
10 - G301
11 - J304
12 - X200
13 - X601 (ASF)
14 - X600 (YE9 without AN3/DL3)
15 - G302
16 - JX339
17 - X305
18 - X319 (AZ3/D07 with UQ3)
19 - X800
20 - J302
21 - G304
22 - X320 (A48)
23 - J303
24 - X322 (UD7)
25 - Floor Panel
RENDER: 1.0x
NO RELATED
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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.