COMPUTER DATA LINES – Chevrolet C3500 HD 1994 – SYSTEM WIRING DIAGRAMS

COMPUTER DATA LINES

4.3L

4.3L (VIN Z), Data Link Connector Wiring Diagram for Chevrolet C3500 HD 1994

List of elements for 4.3L (VIN Z), Data Link Connector Wiring Diagram for Chevrolet C3500 HD 1994:

• (below left side of i/p)
• (left front top of engine)
• A14 diagnostic test c218
• C159
• C272
• Data link connector
• F9 serial data c215
• Four-wheel anti-lock brake module diagnostic (near master cylinder)
• Fuel pump
• Fuel pump prime
• Fuel pump relay (right rear of engine compt, near battery junction)
• G110
• Powertrain control module (under right end of i/p)
• Red
• Request

5.0L

5.0L (VIN H), Data Link Connector Wiring Diagram, A/T for Chevrolet C3500 HD 1994

List of elements for 5.0L (VIN H), Data Link Connector Wiring Diagram, A/T for Chevrolet C3500 HD 1994:

• (below left side of i/p)
• (left front top of engine)
• A14 diagnostic test c218
• C159
• C272
• Data link connector
• F9 serial data c215
• Four-wheel anti-lock brake module diagnostic (near master cylinder)
• Fuel pump
• Fuel pump prime
• Fuel pump relay (right rear of engine compt, near battery junction)
• G110
• Powertrain control module (under right end of i/p)
• Red
• Request

5.0L (VIN H), Data Link Connector Wiring Diagram, M/T for Chevrolet C3500 HD 1994

List of elements for 5.0L (VIN H), Data Link Connector Wiring Diagram, M/T for Chevrolet C3500 HD 1994:

• (below left side of i/p)
• (left front top of engine)
• A8 serial data
• A9 diagnostic test c216
• C159
• C272
• Data link connector
• Four-wheel anti-lock brake module diagnostic (near master cylinder)
• Fuel pump
• Fuel pump prime
• Fuel pump relay (right rear of engine compt, near battery junction)
• G110
• Powertrain control module (under right end of i/p)
• Red
• Request

5.7L

5.7L (VIN K) HD, Data Link Connector Wiring Diagram, A/T for Chevrolet C3500 HD 1994

List of elements for 5.7L (VIN K) HD, Data Link Connector Wiring Diagram, A/T for Chevrolet C3500 HD 1994:

• (below left side of i/p)
• (left front top of engine)
• A14 diagnostic test c218
• C159
• C272
• Data link connector
• F9 serial data c215
• Four-wheel anti-lock brake module diagnostic (near master cylinder)
• Fuel pump
• Fuel pump prime
• Fuel pump relay (right rear of engine compt, near battery junction)
• G110
• Powertrain control module (under right end of i/p)
• Red
• Request

5.7L (VIN K) HD, Data Link Connector Wiring Diagram, M/T for Chevrolet C3500 HD 1994

List of elements for 5.7L (VIN K) HD, Data Link Connector Wiring Diagram, M/T for Chevrolet C3500 HD 1994:

• (below left side of i/p)
• (left front top of engine)
• A8 serial data
• A9 diagnostic test c216
• C159
• C272
• Data link connector
• Four-wheel anti-lock brake module diagnostic (near master cylinder)
• Fuel pump
• Fuel pump prime
• Fuel pump relay (right rear of engine compt, near battery junction)
• G110
• Powertrain control module (under right end of i/p)
• Red
• Request

5.7L (VIN K), Data Link Connector Wiring Diagram, A/T for Chevrolet C3500 HD 1994

List of elements for 5.7L (VIN K), Data Link Connector Wiring Diagram, A/T for Chevrolet C3500 HD 1994:

• (below left side of i/p)
• (left front top of engine)
• A14 diagnostic test c218
• C159
• C272
• Data link connector
• F9 serial data c215
• Four-wheel anti-lock brake module diagnostic (near master cylinder)
• Fuel pump
• Fuel pump prime
• Fuel pump relay (right rear of engine compt, near battery junction)
• G110
• Powertrain control module (under right end of i/p)
• Red
• Request

5.7L (VIN K), Data Link Connector Wiring Diagram, M/T for Chevrolet C3500 HD 1994

List of elements for 5.7L (VIN K), Data Link Connector Wiring Diagram, M/T for Chevrolet C3500 HD 1994:

• (below left side of i/p)
• (left front top of engine)
• A8 serial data
• A9 diagnostic test c216
• C159
• C272
• Data link connector
• Four-wheel anti-lock brake module diagnostic (near master cylinder)
• Fuel pump
• Fuel pump prime
• Fuel pump relay (right rear of engine compt, near battery junction)
• G110
• Powertrain control module (under right end of i/p)
• Red
• Request

6.5L

6.5L (VIN F), Data Link Connector Wiring Diagram for Chevrolet C3500 HD 1994

List of elements for 6.5L (VIN F), Data Link Connector Wiring Diagram for Chevrolet C3500 HD 1994:

• (below left side of i/p)
• (top right rear of engine)
• (under right
• 4-wheel abs
• A12 diagnostic test c217a
• C14 serial data c216
• C159
• C272
• Data link connector
• End of i/p)
• Four-wheel anti-lock brake module (near master cylinder)
• Fuel pump
• Fuel pump prime
• Fuel pump relay (right rear of engine compt, near battery junction)
• G117
• Powertrain control module (under right end of i/p)
• Rear wheel abs
• Red
• Rwal module vehicle (left rear engine compt)
• Speed input
• Speed output
• Vehicle
• Vehicle speed sensor buffer

6.5L (VIN P), Data Link Connector Wiring Diagram for Chevrolet C3500 HD 1994

List of elements for 6.5L (VIN P), Data Link Connector Wiring Diagram for Chevrolet C3500 HD 1994:

• (below left side of i/p)
• (top right rear of engine)
• (under right
• 4-wheel abs
• A12 diagnostic test c217a
• C14 serial data c216
• C159
• C272
• Data link connector
• End of i/p)
• Four-wheel anti-lock brake module (near master cylinder)
• Fuel pump
• Fuel pump prime
• Fuel pump relay (right rear of engine compt, near battery junction)
• G117
• Powertrain control module (under right end of i/p)
• Rear wheel abs
• Red
• Rwal module vehicle (left rear engine compt)
• Speed input
• Speed output
• Vehicle
• Vehicle speed sensor buffer

6.5L (VIN S), Data Link Connector Wiring Diagram for Chevrolet C3500 HD 1994

List of elements for 6.5L (VIN S), Data Link Connector Wiring Diagram for Chevrolet C3500 HD 1994:

• (below left side of i/p)
• (top right rear of engine)
• (under right
• 4-wheel abs
• A12 diagnostic test c217a
• C14 serial data c216
• C159
• C272
• Data link connector
• End of i/p)
• Four-wheel anti-lock brake module (near master cylinder)
• Fuel pump
• Fuel pump prime
• Fuel pump relay (right rear of engine compt, near battery junction)
• G117
• Powertrain control module (under right end of i/p)
• Rear wheel abs
• Red
• Rwal module vehicle (left rear engine compt)
• Speed input
• Speed output
• Vehicle
• Vehicle speed sensor buffer

7.4L

7.4L (VIN N), Data Link Connector Wiring Diagram for Chevrolet C3500 HD 1994

List of elements for 7.4L (VIN N), Data Link Connector Wiring Diagram for Chevrolet C3500 HD 1994:

• (below left side of i/p)
• (left front top of engine)
• A14 diagnostic test c218
• C159
• C272
• Data link connector
• F9 serial data c215
• Four-wheel anti-lock brake module diagnostic (near master cylinder)
• Fuel pump
• Fuel pump prime
• Fuel pump relay (right rear of engine compt, near battery junction)
• G110
• Powertrain control module (under right end of i/p)
• Red
• Request