Share this

Saturn ION (2003 - 2004) - fuse box diagram

avatar Jonathan Yarden Mar 25, 2021 · 5 min. read

In this article you will find a description of fuses and relays Saturn, with photos of block diagrams and their locations. Highlighted the cigarette lighter fuse (as the most popular thing people look for).
Get tips on blown fuses, replacing a fuse, and more.

Year of production: 2003, 2004

Instrument Panel Fuse Block

Some fuses are in a fuse block on the driver’s side of the floor console.

Saturn ION - fuse box - floor console

Fuses Usage
AIR BAG Air bags, Sensing and Diagnostic Module (SDM)
ACCOMMODATION INTERFACE/ ONSTAR Entertainment, Mobile Communications, OnStar
CRUISE Cruise Control Module, Clutch Start Switch
EPS/CRUISE Cruise Control Switches, EPS Unit
FUEL PUMP Fuel Pump Relay
HVAC Climate Control
CLUSTER Instrument Panel Cluste
LIGHTER Cigar Lighter
RADIO (BATT1) Radio Receiver, Entertainment Memory
RADIO (ACC) Radio Receiver, Entertainment
SUNROOF Power Sunroof, OnStar Mirror
WIPER SW Windshield Wipers and Washers, Transaxle Shift Lock Control Switch
DASH Instrument Panel, Dimming Switch
IGN SW Ignition Switch
PARK Headlamp Switch
PWR OUTLET Auxiliary Power Outlet
PWR WINDOWS Power Window Switches
STOP Stoplamp (Brake) Switch
BCM ELECT Ignition Switch, Body Control Module (BCM)
BMC (PWR) Entry Control, Trunk Release

 

Relay Usage
RUN Climate Control (HVAC Blower, Control Heads)
ACC Power Windows, Sunroof, Radio, Wiper/Washer Switch, Accessory Power Outlet
FUEL PUMP Fuel Pump
ALC/PARK OnStar, Radio, Instrument Panel Cluster, Body Control Module (Entry Control), Cigar Lighter, Headlamp Switch, License Lamp

Engine Compartment Fuse Block

The engine compartment fuse block is located in the engine compartment on the driver’s side of the vehicle.

2.2L L4 Engine

Saturn ION - fuse box - engine compartment 2.2 L4

Fuses Usage
1 ECM/TCM Engine Control Module, Transmission Control Module
4 HDLP-RH Passenger’s Side Headlamp
5 A/C  Air Conditioning Clutch Rela
8 ABS2 Anti-lock Brake System, Traction Control Module
9 ECM Engine Control Module
10 ERLS Canister Purge Solenoid, Canister Vent Solenoid, Low Coolant Switch, Oxygen Sensors
11 IGN Electric Ignition Control Module, Charging System, Neutral Stop Back-Up Switch
13 TRANS2 Transaxle (VTi Variable)
14 TRANS1 Transmission Control Module, Neutral Stop Back-Up
15 BACK-UP PRNDL, Back-up Switch
16 INJECTORS Fuel Injectors (Cylinder 1, 2, 3, 4)
17 FOG Fog Lamp Micro Relay
18 HDLP-LH Driver’s Side Headlamp
19 WIPER Wiper Mini Relay
20 HORN Horn Micro Relay
21 PREM AUDIO Entertainment, Premium Radio Amplifier
22 ABS Anti-lock Brake System, Traction Control Module
23 RR DEFOG Rear Defog Mini Relay
38 RUN/CRANK Ignition 1 Mini Relay
39 IP BATT1 Body Control Module
40 ABS Anti-Lock Brake System, Traction Control Module
41 IP BATT2 Body Control Module
42 EPS2 Electric Power Steering
43 EPS1 Electric Power Steering
45 COOLING FAN Cooling Fan Mini Relay
46 CRANK Powertrain Control Module Mini Relay
47 IP BATT 1A Body Control Module
48 RUN (IGN 3) Body Control Module

 

Relays Usage
24 A/C Air Conditioning Clutch
25 HORN Horn
26 FOG LAMP Fog Lamps
28 RUN/CRANK Body Control Module
30 COOLING FAN Engine Cooling Fan
31 PCM CONT ECM
32 WIPER1 Wiper System
33 WIPER2 Wiper System
34 REAR DEFOG Rear Window Defogger

 

Diodes Usage
35 A/C Air Conditioning Diode
37 WIPER Wiper Diode

Engine Compartment Fuse Block (2.0L Supercharged Engine)

Saturn ION - fuse box - engine compartment (engine 2.0 L4)

Fuses Usage
1 ECM Engine Control Module
4 RH HDLP Passenger’s Side Headlamp
5 A/C  Air Conditioning Clutch Relay
8 ABS Anti-lock Brake System
9 ECM/ETC Engine Control Module
10 EMISS Canister Purge Solenoid, Mass Air Flow Sensor, Low Coolant Switch, Oxygen Sensors
11 IGN Ignition Coils (1,2,3,4)
13 ECM Engine Control Module
14 BOOST Engine Boost Solenoid
15 BACK-UP Back-up Switch
16 INJECTORS Fuel Injectors (Cylinder 1, 2, 3, 4)
18 LH HDLP Driver’s Side Headlamp
19 WIPER Wiper Mini Relay
20 HORN Horn Micro Relay
21 RADIO Radio
22 ABS Anti-lock Brake System
23 RR DEFOG Rear Defog Mini Relay
38 RUN/CRANK Ignition 1 Mini Relay
39 IP BATT1 Body Control Module
40 ABS Anti-lock Brake System
41 IP BATT2 Body Control Module
43 EPS Electric Power Steering
44 COOLING FAN 2 Cooling Fan Mini Relay
45 COOLING FAN 1 Cooling Fan Mini Relay
46 CRANK Crank
47 IP BATT 1A Body Control Module
48 RUN (IGN 3) Body Control Module

 

Relays Usage
24 A/C CLUTCH Air Conditioning Clutch
25 HORN Horn
27 AFTER COOLER PUMP After Cooler Pump
28 RUN/CRANK Body Control Module
29 POWERTRAIN Powertrain
30 COOLING FAN 1 Engine Cooling Fan
31 ECM CONT Starter Solenoid
32 WIPER1 Wiper System
33 WIPER2 Wiper System
34 REAR DEFOG Rear Window Defogger

 

Diodes Usage
35 A/C Air Conditioning Diode
37 WIPER Wiper Diode

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Still have questions or want to supplement the article? Discuss On Telegram


Access the private club

Become a member of Fuses.guru and get access to our private telegram bot. Accelerated access and smart search of fuse box & wiring diagrams.
P.S. We never spam!

May Be Useful