To the top of the document
Orlando
   
GMDE Start Page Load static TOC Load dynamic TOC Help?

Electrical Schematic Symbols

Table 1: Voltage Indicators
Table 2: General Icons
Table 3: Switch Position Icons
Table 4: Module Circuit Function Icons
Table 5: Harness Components
Table 6: Component Parts
Table 7: Switches and Relays
Table 8: Devices and Sensors

Voltage Indicators

Symbol

Description


1988677

Battery Voltage


1988679

Ignition Switch - Off Position


1988682

Ignition Switch - Accessory Position


1988686

Ignition Switch - Run Position


1988691

Ignition Switch - Start Position

General Icons

Symbol

Description


1990537

Master Component List Icon

This icon is used on the schematic to link to the Master Electrical Component List.


1990538

Description and Operation Icon

This icon is used on the schematic to link to the Description and Operation of that particular system.


1988674

Computer Programming Icon

This icon is used on the schematic to link to Control Module References, which identifies which components need programming upon replacement.


1990541

Next Schematic Page Icon

This icon is used on the schematic to navigate to the next schematic in the subsystem.


1990542

Previous Schematic Page Icon

This icon is used on the schematic to navigate to the previous schematic in the subsystem.


1988667

Supplemental Inflatable Restraint (SIR) or Supplemental Restraint System (SRS) Icon

This icon is used to alert the technician that the system contains SIR/SRS components that require certain precautions before servicing.


1988670

Information Icon

This icon is used to alert the technician that there is additional information that will aid in servicing a system.


1988672

Danger - High Voltage Icon

This icon is used to alert the technician that a component/system contains 300 volt circuits.


1988673

High Voltage Icon

This icon is used to alert the technician that a component/system contains voltage greater than 42 volts but less than 300 volts.


1990543

Caution Icon

This icon is used to advise the technician to use caution when servicing this component.


1988675

Functional Serial Data Communication

This icon is used to show the technician that the serial data circuit detail is shown incomplete. It also provides an active link to the Data Communication Schematics where the circuit is shown complete.

Switch Position Icons

Symbol

Description


1989016

Generic Up Arrows


1990554

Generic Down Arrows


1990555

Generic Left Arrows


1990556

Generic Right Arrows


1990557

Generic Express Down Arrows


1990558

On/Off Icon


1990559

Generic Lock Icon


1990560

Generic Unlock Icon


1989018

Generic Window Switch Positions - 4 Door


1989020

Generic Window Switch Positions - 2 Door

Module Circuit Function Icons

Symbol

Description


1988774

I/O Pull-Down Resistors (-)


1990567

I/O Pull-Up Resistors (+)


1988775

I/O High-Side Drive Switch (+)


1990568

I/O Low-Side Drive Switch (+)


1990570

I/O Bidirectional Switch (+/-)


1990571

Pulse-Width Modulation Symbol


1990573

Battery Voltage


1990574

Ignition Voltage


1990576

Voltage Reference


1990577

A/C Voltage


1988986

Low Reference


1990578

Ground


1990579

Serial Data


1988973

Aerial Signal - In


1988974

Aerial Signal - Out


2161152

Brake Apply

Harness Components

Symbol

Description


1988731

Fuse


1988733

Fuse Supplied by a Relay


1988740

Circuit Breaker


1988745

Fusible Link


1988987

Ground


1988746

Case Ground


1988977

Inline Harness Connector


1990974

Inline Harness Connector


1990975

Pigtail Connection


1990976

Pigtail Connection


1990977

Provisional or Diagnostic Connector


1990978

Blunt Cut Wire


1988980

Incomplete Physical Splice


1988981

Complete Physical Splice - 2 Wires


1988982

Complete Physical Splice - 3 or more wires


1990979

Wire Crosses


1988988

Twisted Wires


1988990

Shield


1990980

Circuit References


1990981

Circuit Continuation Arrowheads


1988983

Option Breakpoint


1988984

Ground Circuit Connection


1988985

Connector Shorting Clip

Component Parts

Symbol

Description


1988694

Partial Component

When a component is represented in a dashed box, the component or its wiring is not shown in its entirety.


1988698

Entire Component

When a component is represented in a solid box the component or its wiring is shown in its entirety.


1988712

Connector Directly Attached to Component


1988715

Pigtail Connector

Switches and Relays

Symbol

Description


1991015

Accessory Power Outlet


1991016

Cigar Lighter


1988991

Switch - 2 Position Normally Open


1988992

Switch - 2 Position Normally Closed


1988993

Switch - Rocker


1991017

Switch - Contact Plate (1 Wire)


1988994

Switch - Contact Plate (2 Wire)


1991018

Switch - 3 Position


1988995

Switch - 4 Position


1991019

Switch - 5 Position


1991021

Switch - 6 Position


1988997

Switch Actuator - Push (Momentary)


1988998

Switch Actuator - Push (Latching)


1988999

Switch Actuator - Pull (Momentary)


1989000

Switch Actuator - Pull (Latching)


1989001

Switch Actuator - Rotate (Momentary)


1989002

Switch Actuator - Rotate (Latching)


1989003

Switch Actuator - Slide (Momentary)


1989004

Switch Actuator - Slide (Latching)


1989007

Switch Actuator - Pressure (Momentary)


1989010

Switch Actuator - Temperature (Momentary)


1989013

Switch Actuator - Volume (Latching)


1988975

4-Pin Single Pole/Throw Relay - Normally Open


1990539

5-Pin Relay - Normally Closed

Devices and Sensors

Symbol

Description


1988751

Battery


1988753

Battery Assembly - Hybrid


1988717

Single Filament Light Bulb


1988719

Double Filament Light Bulb


1988722

Light Emitting Diode (LED)


1988725

Photo Sensor


1990988

Gauge


1988776

Diode


1988748

Capacitor


1988755

Resistor


1988759

Variable Resistor


1990991

Variable Resistor - NTC


1990992

Breakable Wire


1988778

Heating Element


1988771

Position Sensor


1988773

Pressure Sensor


1990993

Knock Sensor


1990994

Inductive Type Sensor - 2-Wire


1990996

Inductive Type Sensor - 3-Wire


1990998

Hall Effect Sensor - 2-Wire


1990999

Hall Effect Sensor - 3-Wire


1991000

Oxygen Sensor - 2-Wire


1991001

Heated Oxygen Sensor - 4-Wire


1988970

Solenoid - Actuator


1988971

Solenoid - Valve


1988972

Clutch


1988779

Motor


1991003

Motor with PTC


1988729

Aerial


1991005

Speaker


1991006

Horn


1991007

Microphone


1991008

Airbag


1991009

SIR Coil


1991010

SIR Impact Sensor

   


© Copyright Chevrolet. All rights reserved