Question about 1992 Buick Roadmaster

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Blower motor will not run on the a/c system. the power module has been removed. can i jury rig some sort of system to get high? and low blower speeds? this is a 92 buick roadmaster

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Yes sir you can jerry rig a toogle switch. ran a hot wire, to the pos. side on the blower moter, and ground the blower motor to the frame of the car..not a perfect fix, but cheap and will work..keith..

Posted on Mar 12, 2009

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Por favor, necesito diagrama de caja de fusibles para Mazda B2300 del 2001


Mazda B-Series (2001) - fuse box diagram Year of production: 2001

Interior fuse panel

Mazda B-Series - fuse box -
interior fuse panel Number Ampere rating [A] Description 1 5 Power Mirror 2 10 Blower Motor Relay, Air Bag Diagnostic Monitor, Passive Deactivation (PAD) Module 3 7,5 Trailer Tow Connector (LH Stop/Turn) 5 10 4×4 Control Module 7 7,5 Trailer Tow Connector (LH Stop/Turn) 9 7,5 Stoplamp Switch 10 7,5 Cruise Control Servo/Amplifier Assy., GEM/CTM, Shift Lock Actuator, Blend Door Actuator, A/C Heater Control Assy., Turn Signals 11 7,5 Instrument Cluster, Main Light Switch, RABS Resistor 13 20 Brake Pedal Position Switch 14 20 RABS Module 10 4WABS Mod., 4WABS Main Relay 16 30 W/W Motor, Wiper Hi-Lo Relay, Wiper Run/Park Relay, Washer Pump Relay 17 25 Cigar Lighter, Data Link Connector (DLC) 19 25 PCM Power Diode, Ignition, PATS 20 7,5 GEM/CTM, Radio 21 20 Flasher 22 20 Auxiliary Power Point 24 7,5 Clutch Pedal Position (CPP) Switch, Starter Interrupt Relay 26 10 Battery Saver Relay, 4×4 Electronic Shift Relay, Interior Lamp Relay, 4×4 Elec. Shift Control Module, Dome/Map Lamp, Instrument Illumination Dimming Module, Restraint Control Module, GEM/CTM, Instrument Cluster 28 7,5 GEM/CTM System, Radio 29 15 Radio 33 15 Headlights, DRL Module, Instrument Cluster 35 15 ISA Horn Relay if not Equipped with Truck Security Module

Engine compartment fuse block

Mazda B-Series - fuse box -
engine compartment Number Ampere rating [A] Description 1 50 I/P Fuse Panel 6 50 ABS Pump Motor 7 30 Powertrain Control Module 8 20 Power Door Locks and Remote Entry 11 50 Starter Relay Ignition Switch 12 10 PCM Memory 13 20 4×4 Motor 16 40 Blower Motor 21 10 PCM Memory 23 20 Fuel Pump Motor 24 30 Headlights 25 10 A/C Clurtch 28 30 4WABS Module 30 15 Trailer Tow 31 20 Fog Lamps, Day Time Running Lamps (DRL) 33 15 Park Lamp 38 10 Left Headlamp Low Beam 41 - Heated Oxygen Sensors 42 10 Right Headlamp Low Beam 45A - Wiper High/Low 45B - Wiper Park/Run 46A 46B - Front Washer Pump 47A 48A - Fog Lamp 48B - Fog Lamp Relay 49 - Full Starter 50A 50B - Fuel Pump 53 - Powertrain Control Module (PCM) Diode 54 - Powertrain Control Module (PCM) Diode 55 - Blower 56A - A/C Clutch Solenoid 56B - Trailer Tow

Jul 04, 2017 | Mazda Cars & Trucks

2 Answers

I replaced the blower, and resister on my 2012 chevy. impala but blower still don't work. What fuse do I need to check


The fuse box should be under the hood, passenger side. Try the upper box, middle right side Mine is huge, 30 amp

Sep 23, 2016 | 2012 Chevrolet Chevrolet Impala LT

1 Answer

1992 chevy C1500: Heat works on low speed, no medium, and high only works intermittantly.


On any other vehicle it sounds like the blower fan switch.
The fan switch provides power or ground to the resistor and there would be a high speed blower relay to bypass the resistor.
But in your case the fan switch is part of the controller.
I don't have a diagram for a 92 but the 94 model shows relays for low medium and high speeds. Each relay gets power from a fuseable link. The high relay gets power thru the low relay if the low relay is not engaged.
If you have the model with 3 relays you may need to check them.

Feb 01, 2013 | 1992 Chevrolet C1500

1 Answer

Blower stays on after key is removed, now a/c works in front once I hit the highway.


Which of these systems does your vehicle have ?
HVAC Systems - Automatic
Blower Motor Control Processor
The blower motor control processor controls the speed of the blower motor by increasing or decreasing the voltage drop on the ground side of the blower motor. The HVAC control module provides a voltage signal to the blower motor control processor over the blower motor speed control circuit. As the requested blower speed increases, the HVAC control module increases the amount of time that the speed signal is modulated to ground. As the requested blower speed decreases, the HVAC control module decreases the amount of time that the signal is modulated to ground.

HVAC Systems - Manual
Air Speed - Front Control
The blower motor forces outside air into the vehicle's interior. The vehicle operator determines the blower motor's speed when the driver places the blower switch in one of 5 blower speeds. The blower motor will always operate in any switch position other than OFF, as long as the ignition switch is in the RUN position. The blower motor and mode switches are located within the HVAC control module. The blower motor OFF input is connected in series with the HVAC control module by the off blower motor control circuit.
Depending upon the selected speed, power is provided to the blower motor from either the ignition 3 voltage or battery positive voltage circuits from the fuse block. The battery positive voltage circuit only provides power when the High blower switch position is selected. Power and ground are provided to the HVAC control module by the ignition 3 voltage and the ground circuits.
Low Blower Speed
When the Low 1 blower speed is selected, the HVAC control module applies voltage to the blower motor resistor assembly through the low blower motor control circuit. Voltage is divided between 4 series resistors, a blower relay, and the blower motor to achieve the desired blower speed. The blower motor is grounded through the ground circuit.
Medium Blower Speeds
When the Medium 1 blower speed is selected, the HVAC control module applies voltage to the blower motor resistor assembly through the medium 1 blower motor control circuit. Voltage is divided between 3 series resistors, a blower relay, and the blower motor to achieve the desired blower speed. The blower motor is grounded through the ground circuit.
When the Medium 2 blower speed is selected, the HVAC control module applies voltage to the blower motor resistor assembly through the medium 2 blower motor control circuit. Voltage is divided between 2 series resistors, a blower relay, and the blower motor to achieve the desired blower speed. The blower motor is grounded through the ground circuit.
When the Medium 3 blower speed is selected, the HVAC control module applies voltage to the blower motor resistor assembly through the medium 3 blower motor control circuit. Voltage is divided between a series resistor, a blower relay, and the blower motor to achieve the desired blower speed. The blower motor is grounded through the ground circuit.
High Blower Speed
When the High blower speed is selected, the HVAC control module applies voltage to the blower motor resistor assembly through the high blower motor control circuit. The voltage energizes the blower relay, causing the blower motor to be connected directly to the battery positive voltage circuit. The blower motor and blower motor relay are grounded through the ground circuit.

HVAC Control Module
The HVAC control module is a class 2 device that interfaces between the operator and the HVAC system to maintain air temperature and distribution settings. The battery positive voltage circuit provides power that the control module uses for keep alive memory (KAM). If the battery positive voltage circuit loses power, all HVAC DTCs and settings will be erased from KAM. The body control module (BCM), which is the vehicle mode master, provides a device on signal. The control module supports the following features:

Feb 09, 2018 | 2005 Chevrolet Tahoe

1 Answer

The climate control system only has the high fan speed. Is this likely to be the panel control switch?


May be but next to the blower motor is the blower control module this has a series of resistors in it to change the current flow to the blower motor ,.When you call for high speed on the fan it bypasse's the resistor module, on all other speeds it runs through the resistor. so check for power going into the blower module from the control panel on some speed other than high if power is at the module control panel is ok. if not blower module is bad

Oct 23, 2010 | 1999 Pontiac Grand Am GT

1 Answer

2005 Pac. Blower won't shut off even when the power is turned off


There is a relay located in the under hood fuse box , front blower motor relay .Plus a fuse ,fuse #42 40 amp. The relay is controlled by the integrated power module . There are two type systems ,one has a resistor block an the other uses front blower power module . (computer) Check out the wiring diagram here http://www.bbbind.com/free_tsb.html Enter vehicle info. year , make , model and engine size. Under system click on HVAC ,then under subsystem click on HVAC controls . Click the search button then the blue links. I think the difference is a manual or automatic system . Which does your's have ?
Blower Motor Runs all the Time

Oct 24, 2017 | 2005 Chrysler Pacifica

1 Answer

Main fuses for the horn and air bag


Fuse #8, #18 and #22.

Below is a listing of which fuse corresponds with which circuit:

1 - 10 Amp - Transmission Controller, Gauges, Autostick
2 - 10 Amp - Right High Beam Headlight
3 - 10 Amp - Left High Beam Headlight
4 - 10 Amp - Radio, CD Player
5 - 10 Amp - Washer Motor
6 - 15 Amp - Power Outlet
7 - 20 Amp - Tail, License, Parking, Illumination Lights, Instrument Cluster
8 - 10 Amp - Airbag
9 - 10 Amp - Turn Signal Lights, Turn Signal/Hazard Indicator
10 - 15 Amp - Right Low Beam
11 - 20 Amp - High Beam Relay, High Beam Indicator, High Beam Switch
12 - 15 Amp - Left Low Beam Headlight
13 - 10 Amp - Fuel Pump Relay, Power Train Control Module
14 - 10 Amp - Cluster, Day/Night Mirror,Sunroof, Overhead Console, Garage Door Opener, Body Control Module
15 - 10 Amp - Daytime Running Light Module (Canada)
16 - 20 Amp - Fog Light Indicator
17 - 10 Amp - ABS Control, Back Up Lights, Daytime Running Lights, A/C Heater Control Cavity Fuse Circuits
18 - 20 Amp - Power Amplifier, Horn
19 - 15 Amp - Overhead Console, Garage Door Opener, Trunk, Overhead, Rear Reading, and Visor Vanity Lights, Trunk Release Solenoid, Power Mirrors, Power Door Locks, Body Control Module, Aspirator Motor
20 - 20 Amp - Brake Lights
21 - 10 Amp - Leak Detection Pump, Low Rad Relay, High Rad Relay, A/C Clutch Relay
22 - 10 Amp - Airbag
23 - 30 Amp - Blower Motor, ATC Power Module
24 - 20 Amp - Power Window Motors
25 - 20 Amp - Power Door Lock Motors, Power Seats

Apr 02, 2009 | 2004 Dodge Intrepid

2 Answers

Front blower motor doesn't work, rear does


yes, all blower motors have them to control their speed, High, medium, low.. etc. I earn nothing by helping you, but my rating, a fixya rating and I will walk you through this

Dec 20, 2008 | 2005 Chrysler Town & Country

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