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.
SYS.OK|MANUAL.DBβ LIVE
HOMESERVICE MANUALSCHEVROLET1998SUBURBAN K2500, 7.4 J, PART TIMEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 642 (WIRING SYSTEMS - CONNECTOR END VIEWS)CONNECTOR END VIEWSINLINE HARNESS CONNECTOR END VIEWSC201
1998 Chevrolet Suburban K2500, 7.4 J, Part Time
Inline Harness Connector End Views: C201
1998 Chevrolet Suburban K2500, 7.4 J, Part TimeSECTION C201
WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
C201 Connector End View
| Connector Part Information |
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Connector Part Information |
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|---|---|---|---|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function | Pin | Wire Color | Circuit No. | Function |
| A1 | ORN | 300 | Ignition 3 Voltage | A1 | ORN | 300 | Ignition 3 Voltage |
| A2 | YEL | 5 | Crank Voltage | A2 | YEL | 5 | Crank Voltage |
| A3 | PNK | 3 | Ignition 1 Voltage | A3 | PNK | 3 | Ignition 1 Voltage |
| A4 | BRN | 4 | Accessory Voltage | A4 | BRN | 4 | Accessory Voltage |
| A5 | ORN | 1040 | Battery Positive Voltage | A5 | ORN | 1040 | Battery Positive Voltage |
| A6 | YEL | 243 | Accessory Voltage | A6 | YEL | 243 | Accessory Voltage |
| A7 | DK GRN | 500 | Ignition 0 Voltage | A7 | DK GRN | 500 | Ignition 0 Voltage |
| A8 | ORN | 2340 | Battery Positive Voltage | A8 | ORN | 2340 | Battery Positive Voltage |
| B1 | BLK | 1550 | Ground | B1 | BLK | 1550 | Ground |
| B2 | LT GRN | 80 | Key In Ignition Switch Signal | B2 | LT GRN | 80 | Key In Ignition Switch Signal |
| B3 | PPL | 1807 | Class 2 Serial Data (Primary) | B3 | PPL | 1807 | Class 2 Serial Data (Primary) |
| B4 | LT BLU | 1134 | Park Position Switch Signal (Pontiac) | B4 | LT BLU | 1134 | Park Position Switch Signal (Pontiac) |
| DK GRN/WHT | 1135 | A/T Shift Lock Control Solenoid Supply Voltage (Buick) | DK GRN/WHT | 1135 | A/T Shift Lock Control Solenoid Supply Voltage (Buick) | ||
| B5 | BLK | 1450 | Ground | B5 | BLK | 1450 | Ground |
| B6 | ORN | 2340 | Battery Positive Voltage | B6 | ORN | 2340 | Battery Positive Voltage |
| B7 | PPL | 1500 | Ignition 0 Voltage | B7 | PPL | 1500 | Ignition 0 Voltage |
| B8 | PNK | 39 | Ignition 1 Voltage | B8 | PNK | 39 | Ignition 1 Voltage |
| B9 | GRY | 397 | Cruise Control On Switch Signal | B9 | GRY | 397 | Cruise Control On Switch Signal |
| B10 | DK BLU | 84 | Cruise Control Set/Coast Switch Signal | B10 | DK BLU | 84 | Cruise Control Set/Coast Switch Signal |
| B11 | GRY/BLK | 87 | Cruise Control Resume/Accel Switch Signal | B11 | GRY/BLK | 87 | Cruise Control Resume/Accel Switch Signal |
| B12 | PPL | 1375 | Remote Radio Control Supply Voltage | B12 | PPL | 1375 | Remote Radio Control Supply Voltage |
| C1 | PNK | 539 | Ignition 1 Voltage | C1 | PNK | 539 | Ignition 1 Voltage |
| C2 | LT BLU/WHT | 1414 | Turn Signal Switch Left Signal | C2 | LT BLU/WHT | 1414 | Turn Signal Switch Left Signal |
| C3 | DK BLU/WHT | 1415 | Turn Signal Switch Right Signal | C3 | DK BLU/WHT | 1415 | Turn Signal Switch Right Signal |
| C4 | TAN | 2144 | Hazard Switch Signal | C4 | TAN | 2144 | Hazard Switch Signal |
| C5 | BLK | 28 | Horn Relay Control | C5 | BLK | 28 | Horn Relay Control |
| C6-C11 | - | - | Not Used | C6-C11 | - | - | Not Used |
| C12 | BLK | 910 | Headlamp Low/High Beam Relay Control | C12 | LT BLU | 910 | Headlamp Low/High Beam Relay Control |
| D1 | BLK/WHT | 1969 | Headlamp High Beam Relay Control | D1 | BLK/WHT | 1969 | Headlamp High Beam Relay Control |
| D2 | PNK/WHT | 1970 | Headlamp Low Beam Relay Control | D2 | PNK/WHT | 1970 | Headlamp Low Beam Relay Control |
| D3 | GRY | 112 | Windshield Wiper Switch Signal 1 | D3 | GRY | 112 | Windshield Wiper Switch Signal 1 |
| D4 | DK GRN | 113 | Windshield Wiper Switch Signal 2 | D4 | DK GRN | 113 | Windshield Wiper Switch Signal 2 |
| D5 | PPL | 92 | Windshield Wiper Motor High Speed | D5 | PPL | 92 | Windshield Wiper Motor High Speed |
| D6 | RED | 228 | Washer Pump Control | D6 | RED | 228 | Windshield Washer Pump Control |
| D7 | DK BLU | 1796 | Steering Wheel Controls Signal | D7 | DK BLU | 1796 | Steering Wheel Controls Signal |
| D8 | GRY/BLK | 1458 | Instrument Panel Lamp Supply Voltage 4 | D8 | GRY/BLK | 1458 | Instrument Panel Lamp Supply Voltage 4 |
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.