Question about 2001 Chevrolet Tahoe

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4x4 2001 Tahoe Control Module at the transfer case keeps burning Fuse

4X4 2001 Tahoe keeps burning the Fuse when Control Module is Activated

Posted by Sergio Vasquez Sr. on


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Denny Giesel

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There is a dead short inside the module-try a junkyard for another to see if it works-parts stores won't return one thats been installed- cheers Denny

Posted on Nov 27, 2013


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  • 45 Answers

SOURCE: 2000 s10 blazer 4x4

Normal 0 false false false MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;}Hi: If the front diffis fine then it boils down to usually one of three things why it won’tengage. 1 – No power, 2 – relay notworking (located by passenger side) right side or 3 – no vacuum. The 1995 and up Jimmy’s and Blazer’s use thesame system for engaging the front diff. They are all made to “shift on the fly” while driving down the road withnothing to do but press the button on the dash. (Do NOT shift into 4 Low while driving at higher speeds at it can dodamage). If the dash light flashes andyou hear a clicking sound that means you have power to the relay. If the vehicle 4 High lights stops flashingand it goes back into 2 High then the problem is likely that you have no vacuumto the 4 X 4 actuator module which is located below the battery tray. Remove the battery and tray; look for a holeburnt in the vacuum line or actuator module rubber diaphragm. When the activator get vacuum it pulls acable that attaches to the front diff engaging it, when engaged the wires onthe front diff send a signal to the 4 X 4 light on the dash telling you it is engaged). If the battery has ever leaked the acid runsdown onto the actuator causing the problem. If no holes found in the hose or actuator diaphragm I would use batterycables and hook up the battery and start vehicle then check for vacuum byputting my finger on the end of the actuator hose. If there is vacuum then problem in actuatoror cable linkage. If no vacuum I wouldthen trace back the vacuum lines to find where it is off or leaking, NOTE: As the heater control operates on vacuum and some other vehicle systemsdo as well bear this in mind, has your vehicle had heater control problems orbeen running rough, this could explain a lot of potential problems. Attached to the hood on the left side(drivers side) on 1997 and older models is a vacuum (a “ball”) canister, newermodels the canister is located in the left fender by the brake module, makesure the vacuum line is attached there. Please rate this suggestion as I never know if it is worth my timefilling these things out…

Posted on Feb 26, 2009



  • 87 Answers

SOURCE: 4x4 transfer case oil change for 2007 Chevy Tahoe

Go buy the chevrolet shop manual for the truck. Its worth every penny in the long run and will save you thousands by not going to the dealer for everything, because they consult the shop manual. make sure your tranny doesnt share fluid with your transfer case, you could over fill or underfill it easily.

Posted on Jun 03, 2009


Joe Clark

  • 132 Answers

SOURCE: 1993 chevy 1500 4x4 pickup no power to front actuator

check all wire conections also replace the actuator on the front axle but check for power there first if you have power replace that switch as well .

Posted on Aug 27, 2009


  • 1 Answer

SOURCE: faulty transfer case control module

2005 chevy 3/4 ton stuck in 4 wheel low

Posted on Dec 21, 2009


Johnny Brown

  • 5763 Answers

SOURCE: 96 tahoe 4x4 not engaging the front wheels

then the seloniod actuator if the front diff may be bad, this is common,heres a diagram to show you what it is and where it is, hope this helps.3e85522.gif

Posted on Jan 27, 2010

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Headlights 2000 Chevy astro van dont work they come on some times but go right off i think theirs a ground loose or some thing new battery new alternator

I'd check the headlamp relay in the under hood fuse / relay box to start . The relay is energized by the BCM - body control module !
Voltage is available to the headlamp and panel dimmer switch at all times. When the headlamp and panel dimmer switch is activated, the two following actions occur via CKT 352 (WHT):
A headlamp enable request is sent to the body control module (BCM)

The headlamp relay is activated

The VE1 option is equipped with automatic headlamps, which is activated when the photo sensor detects dark conditions. A code will set if there is a fault in the photo sensor, or in the two CKT's between the photo sensor and the body control module (BCM).
The coil output of the headlamp relay travels through CKT 250 (BLK) and is grounded at G101.
When the headlamp relay is activated, power is supplied to both the LH and RH headlamp fuses through CKT 1346 (LT BLU).
LO and HI beam functions are activated/determined by the multi-function switch on the steering column.
The HI beam function must be enabled by the body control module (BCM).
The headlamp power travels through the multi-function switch at the steering column and is grounded through CKT 750 (BLK).
The flash-to-pass function is also activated by the multi-function switch on the steering column. It is powered by CKT 1840 (ORN) and enabled through the body control module (BCM) via CKT 307 (YEL).

Dec 27, 2015 | Cars & Trucks

1 Answer

2002 ford expedition interior lights are not on what fuse is it?

Courtesy Lamps - central junction box. fuse # F1.21 that goes to interior lamp relay in the instrument cluster and F.24 this fuse powers battery saver relay .
Interior Lighting The interior light system consists of the following:
  • front map lamp assembly
  • front door courtesy lamp
  • generic electronic module (GEM)
  • glove box lamp assembly
  • central security module
  • interior lamp switch
  • interior lamp relay
  • illuminated vanity mirrors (Navigator only)
  • reading lamp assembly
  • rear courtesy lamp
  • running board lamp
  • underhood lamp assembly
  • The generic electronic module (GEM) illuminates the interior lamps when an unlock signal is received from the remote anti-theft personality central security module. The illuminated entry feature will be canceled when any of the following conditions are met:
    • 25 seconds have elapsed since the illuminated entry feature was activated and the interior lamp control is not activated (door ajar or courtesy lamp switch on).
    • The GEM receives a request from the central security module (remote transmitter lock button pressed) and the interior lamp control is not activated.
    • The ignition is in the RUN or START position and the interior lamp control is not activated.
    The GEM will illuminate the interior lamps when any door is open or ajar. The interior lamps are; the dome lamp, the rear cargo lamp, the door courtesy lamp and the side rail lamps. The courtesy lamps will shut off when the doors are closed and the illuminated entry feature is not active or when the vehicle speed is greater than 5 mph (8 km/h). The interior lamps will not be reactivated until the vehicle speed is less than 3 mph (5 km/h) and a new door open warning lamp switch is received.
    The GEM controls the interior lamps illuminated entry function by activating the interior lamp relay.
  • You have an electronic control module and relays involved in the operation of these lights also !

  • What

    Jan 08, 2015 | 2002 Ford Expedition

    1 Answer

    Fuse for the alarm system

    Here is the full list of fuses for you! and for the car.

    Fuses on E-box, on left in Engine Compartment

    Fuse 1 - Not assigned

    Fuse 2 - 10/15A - Engine control unit

    Fuse 3 - 5A - Radiator fan control unit

    Fuse 4 - 5/10/15A - Lambda probe heater,
    Lambda probe 1 heater after
    catalytic converter

    Fuse 5 - 10A, 20A - Lambda probe heater1,
    Lambda probe 1 heater after
    catalytic converter,
    Fuel system diagnostic pump,
    Charge pressure control solenoid
    Exhaust gas recirculation cooler
    change-over valve,
    Crankcase breather heater element,
    Vacuum pump for brakes

    Fuse 6 - 5A, 10A,15A - Fuel system diagnostic pump,
    Throttle valve module,
    Activated charcoal filter system
    solenoid valve 1,
    Continued coolant circulation pump,
    Auxiliary air heater heating element

    Fuse 7 - 20A, 5A - Ignition transformer,
    Fuel pressure regulating valve,
    Fuel metering valve

    Fuse 8 - 10A - Throttle valve module,
    Activated charcoal filter system
    solenoid valve 1

    Fuse 9 - 5A - Automatic glow period control unit,
    Electric fuel pump 2 relay,
    Fuel pump relay

    Fuse 10 - 5A - Speedometer sender,
    Brake light switch

    Fuse 11 - Not assigned

    Fuse 12 - 5A - Coolant circulation pump

    Fuse 13 - 5A - Water pump

    Fuse 14 - 5A - Engine control unit

    Fuse 15 - 30A - Voltage stabiliser

    Fuse 16 - 30A - ABS control unit

    Fuse 17 - 30A - Automatic gearbox control unit

    Fuse 18 - 20A - Automatic gearbox control unit

    Fuse 19 - 1A - Onboard supply control unit

    Fuse 20 - 30A - Onboard supply control unit (AW0)
    Automatic intermittent wash and
    wipe relay (AW1)

    Fuse 21 - 50A - Secondary air pump motor

    Fuse 22 - Not assigned

    Fuse 23 - 40A - ABS control unit

    Fuse 24 - 50A - Trailer detector control unit

    Fuse 25 - 50A - Terminal 15 voltage supply relay 2

    Fuse 26 - 60A - Automatic glow period control unit

    Fuse 27 - 60A - Radiator fan

    Fuse 28 - 40A - Onboard supply control unit (AW1)

    Fuse 29 - 40A - Onboard supply control unit (AW1)

    Fuse 30 - 50A - Terminal 75 voltage supply relay 1

    Fuse 31 - 30A - Amplifier

    Fuse 32 - Not assigned


    Fuse assignment - Interior Fuse Panel

    Fuse 1 - Not used

    Fuse 2 - 5A - Electronic steering column lock control module

    Fuse 3 - 10A - Instrument cluster control module

    Fuse 4 - Not used

    Fuse 5 - Not used

    Fuse 6 - 10A - Vehicle electrical system control module,
    Interior ceiling lights,
    Tail lights

    Fuse 7 - 5A - Fog lamp relay,
    Instrument panel and switch illumination dimmer switch,
    License plate lamps,
    Vehicle electrical system control module

    Fuse 8 - 7.5A - Windshield and headlamp washer pump switch,
    Windshield washer pump

    Fuse 9 - 5A - Airbag control module

    Fuse 10 - 10A - Right steering column switch

    Fuse 11 - Not used

    Fuse 12 - Not used

    Fuse 13 - 5A - Automatic dimming interior rearview mirror,
    Light recognition sensor,
    Parking aid control module,
    Air quality sensor,
    High pressure sensor,
    Climatronic control unit,
    Tire pressure monitoring button,
    Back-up lamp switch,
    Left washer nozzle heater,
    Right washer nozzle heater,
    28-pin connector

    Fuse 14 4- 10A - Left steering column switch,
    ABS control module,
    Light switch,
    Airbag spiral spring/return spring with slip ring,
    Fuel pump control module,
    Data bus on board diagnostic interface

    Fuse 15 - 10A - 16-pin connector (diagnostic connector),
    Instrument panel and switch illumination dimmer switch,
    Headlamp range control adjuster,
    Auxiliary heater operation relay,
    Mass airflow sensor,
    Positive crankcase ventilation heating element,
    Left front headlamp,
    Left headlamp beam adjustment motor,
    Right front headlamp,
    Right headlamp beam adjustment motor,

    Fuse 16 - 10A - Engine control module

    Fuse 17 - Not used

    Fuse 18 - 15A - Left front headlamp

    Fuse 19 - 15A - Right front headlamp

    Fuse 20 - 10A - Automatic transmission control module,
    Selector lever sensor system control module,
    Tiptronic switch,
    Climatronic control unit,
    Ignition/starter switch

    Fuse 21 - Not used

    Fuse 22 - 10A - Ignition/starter switch,
    Converter box,
    Alarm horn,
    Interior monitoring sensor,
    Alarm horn relay,
    Dual tone horn relay

    Fuse 23 - 10A - Vehicle electrical system control module,
    16-pin connector (diagnostic connector),
    Light switch,
    Rain/light recognition sensor,
    Compass magnetic field sensor,

    Fuse 24 - 10A - Vehicle electrical system control module,
    Access/start authorization control module

    Fuse 25 - 15A - Automatic transmission control module,
    Selector lever sensor system control module,
    Multifunction transmission range switch

    Fuse 26 - 15A - Brake system vacuum pump

    Fuse 27 - Not used

    Fuse 28 - 40A - Auxiliary heater operation relay

    Fuse 29 - 1A - Vehicle electrical system control module,

    Fuse 30 - 20A - Cigarette lighter,
    12 V socket,
    12 V socket 2,
    Blocking diode

    Fuse 31 - 30A - Light switch

    Fuse 32 - 20A - Light switch

    Fuse 33 - 40A - Heater/heat output switch,
    Fresh air blower relay,
    A/C control module,
    Fresh air blower switch

    Fuse 34 - 15A - Left front headlamp,
    Left front headlamp,
    Instrument cluster control module

    Fuse 35 - 10A - Steering column electronics control module,
    Instrument cluster control module,
    Signal horn activation,
    Data bus on board diagnostic interface

    Fuse 36 - 25A - Vehicle electrical system control module

    Fuse 37 - 15A - Left front headlamp DRL

    Fuse 38 - 15A - Right front headlamp DRL

    Fuse 39 - 15A - Low beam relay

    Fuse 40 - 15A - Towing recognition control module

    Fuse 41 - 15A - Towing recognition control module

    Fuse 42 - 20A - Towing recognition control module

    Fuse 43 - 30A - Front passenger door control module

    Fuse 44 - A25 - Rear window defogger relay,
    Vehicle electrical system control module

    Fuse 45 - 30A - Driver door control module,
    Front passenger door control module

    Fuse 46 - 30A - Left rear door control module,
    Right rear door control module

    Fuse 47 - 15A - Fuel pump control module,
    Fuel pump relay,
    Fuel primer relay

    Fuse 48 - 20A - Vehicle electrical system control module,
    Vehicle electrical system control module,
    Vehicle electrical system control module,

    Fuse 49 - 20A - Climatronic control unit,
    A/C control module

    Fuse 50 - 30A - Front seat heating control module

    Fuse 51 - 30A - Power sunroof control module

    Fuse 52 - 20A - Dual tone horn relay

    Fuse 53 - 15A - Front seat heating control module

    Fuse 54 - 15A - Fog lamp relay

    Fuse 55 - 20A - Light switch,
    Left steering column switch

    Fuse 56 - Not used

    Fuse 57 - 15A - Radio,
    Radio/navigation display unit control module

    Fuse 58 - 1A, 30A - Telephone transceiver
    DC/AC converter with socket, 12V-230V

    Fuse 59 - 30A - Amplifier

    Fuse 60 - 30A - Auxiliary heater control module

    Hope this helps


    May 31, 2014 | 2010 Volkswagen Jetta

    1 Answer

    07 Tahoe - L/S Parking light fuse keeps blowing when tailgate is opened

    You have a 'short to ground' wiring issue. Either the switch that is activated by opening the gate or the wiring in the gate itself is damaged/broken.
    I'd remove the switch 1st and see if the fuse doesn't blow. IF it does by a new one on Ebay or @ the dealer.

    otherwise, get a multi-meter and a wiring diagram for your Tahoe and trace the wiring from the switch.


    May 04, 2014 | 2007 Chevrolet Tahoe

    1 Answer

    Where is 2003 chevrolet tahoe ecu fuse

    The ECU will not have anything to do with those issues. ECU or ECM is for "engine control module/unit". Sounds like you have a bad wire.

    Oct 14, 2012 | 2003 Chevrolet Tahoe

    2 Answers

    My 2003 tahoe keeps going in to 4-wheel drive on it own

    the encoder motor on transfer case has gone bad there is a sensor inside that lets computer know what gear it is in and when becomes worn loses signal so module keeps shifting motor trying to get in right spot. the motor needs to be replaced

    Aug 15, 2011 | 2003 Chevrolet Tahoe

    1 Answer

    How do I fix my ABS control Module for 2001 Tahoe

    you dont... you need to take it to a certified shop air bags are like that

    Jan 06, 2009 | 2001 Chevrolet Tahoe

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    body control module has been known to cause this

    Jun 08, 2008 | 2005 Chevrolet Tahoe

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