Chevrolet Blazer 2005 - 2005 ELECTRICAL Fuses & Circuit Breakers - Blazer & Jimmy Canadian

Chevrolet Blazer 2005 - IDENTIFICATION

CAUTION:

When battery is disconnected, vehicle computer and memory systems may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle. See appropriate COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION before disconnecting battery.

Chevrolet Blazer 2005 - FUSIBLE LINKS

Fusible links are usually located between battery and starter or electrical center. For description and repair procedures, see Fig. 1.

Fig. 1: Chevrolet Blazer 2005 - Component Locations - Repairing Fusible Links

Chevrolet Blazer 2005 - INSTRUMENT PANEL FUSE BLOCK

NOTE:

The instrument panel fuse block is located at the left side of the I/P, near the left door jamb switch.

Fig. 2: Chevrolet Blazer 2005 - Component Locations - Identifying Instrument Panel Fuse Block

Chevrolet Blazer 2005 Fuse Block - I/P

Fuse No.	Device	Rating	Description
1	-	-	Not Used
2	CIGAR LTR	15A	Cigar Lighter and Data Link Connector (DLC)
3	CRUISE	10A	Body Control Module (BCM), Cruise Control Module (CCM), Multifunction Switch (Cruise Control Switch), and Seat Lumbar Switch - Driver/Front Passenger
4	GAGES	10A	Body Control Module (BCM), and Instrument Panel Cluster (IPC)
5	PARK LP	10A	Body Control Module (BCM), Outside Rear View Mirror Switch, Door Lock and Side Window Switch - Driver/Front Passenger, Side Window Lockout Switch, and Rear Seat Audio Control, IP Ashtray Lamp
6	STR WHL ILLUM	2A	Redundant Steering Wheel Controls
7	HDLP SW	10A	Headlamp Switch
8	CTSY LP	10A	Courtesy Lamps - Left/Right Console, Inadvertent Power Relay, and Transfer Case Shift Control Module (NP1)
9	HVAC	20A	HVAC Control Module
10	TURN	20A	Multifunction Switch (Hazard Switch)
11	CLSTR	10A	Instrument Panel Cluster (IPC), Automatic Transmission Shift Lock Actuator (w/ Floor Shift A/T), and Automatic Transmission
12	ILLUM	10A	Radio, HVAC Control Module, Fog Lamp Switch, Rear Wiper/Washer and Endgate/Liftgate Window Release Switch, Driver Information Center (DIC), Automatic Transmission Shift Lever Position Indicator (w/ Floor Shift A/T), Body Control Module (BCM), Transfer Case Select Switch, Instrument Panel Cluster (IPC), and Headlamp Leveling Switch (Export)
13	AUX PWR	20A	Accessory Power Outlet - Left/Right, Accessory Power Outlet - Floor Console, Accessory Power Outlet - Rear
14	PWR LKS	15A	Door Lock Relay, Door Unlock Relay, and Door Unlock Relay - Driver (w/ Power Door Locks)
15	4WD	10A	Powertrain Control Module (PCM), Transfer Case Shift Control Module, Transfer Case Shift Control Switch (w/ NP1 or NP8), Front Axle Vacuum Solenoid (w/ NP1 or NP8), and Front Axle Indicator Switch (w/ NP1 or NP8)
16	SIR	15A	Inflatable Restraint Sensing and Diagnostic Module (SDM)
17	FRT WPR	25A	Windshield Wiper Motor, and Multifunction Switch (Wiper Switch)
18	STR WHL RDO IGN	2A	Redundant Steering Wheel Controls
19	RDO BATT	15A	Radio, Instrument Panel Cluster (IPC), HVAC Control Module, Vehicle Interface Unit (VIU)
20	AMPF	25A	Audio Amplifier (w/ Premium Audio)
21	HVAC I	10A	Air Temperature Actuator, HVAC Control Module, Inside Rear View Mirror ( w/Automatic Day - Night Mirror), Air Temperature Sensor Assembly - Inside, Vacuum Control Assembly
22	ABS	10A	Stop Lamp Switch, and Electronic Brake Control Module (EBCM)
23	RR WPR	15A	Rear Wiper/Washer Switch and Endgate/Liftgate Window Release Switch
24	RDO IGN	10A	Radio, Driver Information Center (DIC), Rear Seat Audio (RSA) Module, Vehicle Interface Unit (VIU), and Outside Rear View Mirror Switch

Chevrolet Blazer 2005 - UNDERHOOD FUSE/RELAY CENTER

NOTE:

Engine compartment fuse/relay center is located in the engine compartment, on top of the left inner wheel well.

Fig. 3: Chevrolet Blazer 2005 - Component Locations - Identifying Underhood Fuse Block

Chevrolet Blazer 2005 Fuse Block - Underhood

Device	Rating	Description
Maxi Fuses
INT BATT	50A	HDLP SW, AUX PWR, RDO BATT, CIGAR LTR, CTSY LP, and PWR LKS Fuses, and AMPF Fuse (w/ Premium Audio)
ABS	60A	Electronic Brake Control Module (EBCM)
IGN B	50A	Ignition Switch
RAP	50A	Retained Accessory Power (RAP) Relay, POWER SEATS Circuit Breaker (w/ Power Seats)
IGN A	40A	Starter Relay and Ignition and Start Switch
STUD #2	30A	Trailer Wiring Provision (Power Aux)
Mini Fuses
TRL TRN	10A	Trailer Wiring Provision (LP - Stop, T/Sig - LH)
LT TRN	10A	Park/Turn Signal Lamp - LR, Turn Signal Lamp - LR (Export)
BTSI	10A	Stop Lamp Switch, Transfer Case Shift Control Module (w/ NP1), and Automatic Transmission Shift Lock Actuator (w/Floor Shift A/T Only)
PARK LP	20A	Park Lamp Relay, Headlamp Grounding Relay, and Headlamp Switch
HVAC	30A	Blower Motor Relay (w/o Electronic Climate Control), Blower Motor Control Module (w/ Electronic Climate Control)
HAZ LP	20A	Multifunction Switch (Hazard)
TRR TRN	10A	Trailer Wiring Provision (LP - Stop, T/Sig - RH)
RT TRN	10A	Park/Turn Signal Lamp - RR, Turn Signal Lamp - RR (Export)
TRCHMSL	10A	Trailer Wiring Provision (LP - High MT Stop)
VECHMSL	10A	Center High Mounted Stop Lamp (CHMSL), Center High Mounted Stop Lamp (CHMSL) Resistor, Cruise Control Module (CCM), and Tail/Stop Lamp - LH/RH (Export)
TRL B/U	10A	Trailer wiring Provision (LP-B/U)
ECM I	15A	Ignition Control Module (ICM), Fuel Injectors 1-6, Powertrain Control Module (PCM), and Ignition Coil
LD LEV	25A	Not Used
VEH B/U	15A	Backup Lamp - Right/Left, Inside Rear View Mirror (w/Automatic Day - Night Mirror Only)
ENG I	10A	Evaporative Emission (EVAP) Canister Purge Solenoid, Evaporative Emission (EVAP) Canister Vent Solenoid, Mass Air Flow (MAF) Sensor, and Camshaft Position (CMP) Sensor
OXYSEN	20A	Heated Oxygen Sensor (HO2S) Bank 1, Sensor 1, Heated Oxygen Sensor (HO2S) Bank 1, Sensor 3, Heated Oxygen Sensor (HO2S) Bank 2, Sensor 1
RR PRK	10A	Park/Turn Signal Lamps - RR (Domestic), Tail/Stop Lamp - RH (Export)
ECM B	20A	Fuel Pump Relay
B/U LP	25A	Backup Lamp Switch (w/ M/T) and Park Neutral Position (PNP) and Backup Lamp Switch (w/ A/T)
IGN E	10A	A/C Compressor Relay, Secondary Air Injection (AIR) Relay (w/ California Emissions only), Rear Defogger Relay, Headlamp Leveling Switch (Export), and Headlamp Leveling Actuator Motor, LH/RH (Export), Automatic Level Control (ALC) Sensor and Compressor
LR PRK	10A	Park/Turn Signal Lamps - LR (Domestic) and Tail/Stop Lamp - LH (Export)
RR DEFOG	30A	Rear Window Defogger Grid
TRL PRK	10A	License Lamps, and Trailer Wiring Provisions (LP Park)
LT HDLP	15A	Daytime Running Lamps (DRL) Relay and Headlamp - Low Beam - Left
HTD MIR	10A	Outside Rearview Mirror - Right/Left (Heating Element)
RT HDLP	15A	Headlamp - Low Beam - Right, and Headlamp - High Beam - Right
MIR/LKS	3A	Outside Rear View Mirror Switch, Door Lock and Side Window Switch - Left/Right, Lift Glass Relay, Liftgate or Endgate Lock Cylinder Switch
ATC	20A	Transfer Case Shift Control Module, and Transfer Case Encoder Motor (w/o NP1)
A/C	10A	A/C Compressor Relay
FOG LP	15A	Fog Lamp Relay, and Daytime Running Lamps (DRL) Relay
TBC	10A	Body Control Module (BCM), Remote Control Door Lock Receiver (RCDLR), and Multifunction Switch (Flash to Pass)
RT TURN	10A	Park/Turn Signal Lamp - RH, Marker Lamp, Repeater Lamps (Export)
CRANK	10A	Transfer Case Shift Control Module, Clutch Pedal Position (CPP) Switch (M/T Only), and Park/Neutral Position (PNP) and Backup Lamp Switch (A/T Only)
LT TURN	10A	Park/Turn Signal Lamp - LH, Marker Lamp, Repeater Lamp (Export)
FR PRK	10A	Park/Turn Signal Lamp - LH/RH (Domestic), Marker Lamp, Headlamp Washer Pump Relay (Export)
W/W PMP	10A	Headlamp Washer Fluid Pump Relay (Export Only)
IGN C	20A	Ignition Switch
STOP LP	20A	Stop Lamp Switch
HDLP W/W	15A	Headlamp Washer Fluid Pump Relay (Export Only)
HORN	15A	Horn - Left/Right
HTD SEAT	20A	Seat Heater Module, LH/RH (w/ Heated Seats), Lumbar Switch, RH, LH (w/ Heat and Lumbar)
RR W/W	15A	Rear Window Wiper Motor
Micro Relays
F/PUMP	-	Fuel Pump
DRL	-	Headlamp - High Beam - Left
LIFT GLASS	-	Liftgate/Endgate Window Release Actuator
A/C	-	A/C Compressor
FOG LP	-	Fog Lamps and Fog Lamp Switch
HORN	-	HORN Fuse
CHMSL	-	Not Used
Mini Relays
STARTER	-	Starter Solenoid (Coil)
RR DEFOG	-	RR DEFOG, and HTD MIR Fuses
HDLP PWR	-	RT HDLP, and LT HDLP Fuses

Chevrolet Blazer 2005 - FUSE HOLDER

Fuse holder is located on the lower right side of the radiator support, below the battery

Chevrolet Blazer 2005 - BODY RELAY BLOCK

Body relay block is located on the left side of instrument panel, to the right of the instrument panel fuse block.

Fig. 4: Chevrolet Blazer 2005 - Component Locations - Identifying Relay Block - Body Top View