2005 Pontiac Montana Extended - Answered Questions & Fixed issues

Out with the factory wiring book & do some voltage drops with your volt meter, to find out where the voltage is going & not to your switch

2009 Mazda Tribute left rear door you join the black and yellow wires to bypass. I searched for this everywhere and couldn't find it. I had to eeny meeny miney mo. Now it's on the internet.

Get into a shop Soon or-- a dealer-- if money is no concern Snow & Cold time is here for most folks Need to have the ENTIRE vehicle in the best condition possible-- for the winter --reguardless of cost

Is the security light on in the instrument cluster ? Sounds like anti-theft system problem . The anti-theft does not disable the fuel pump ,turns off the fuel injectors , nor does it disable the starter . So it's probably not the anti-theft system . Your best bet (if you know how ) test power and ground circuits using voltage drop testing , hook up a professional scan tool an do a full system scan of all the modules on the vehicle . Your probably not aware of the sophisticated electronics on that vehicle . BCM - body control module ,Immobilizer Description and Operation The immobilizer system functions are provided by the body control module (BCM). When an ignition key is inserted into the ignition lock cylinder and the ignition is switched ON, the BCM supplies battery voltage to the theft deterrent exciter module. The transponder embedded in the head of the key is energized by the theft deterrent exciter module which is surrounding the ignition lock cylinder. The energized transponder transmits a signal that contains its unique value, which is received by the theft deterrent exciter module. The BCM monitors the theft deterrent exciter module for the transponder value. The BCM then compares this value to a value stored in memory, the learned key code. If the value is correct, the BCM sends the fuel enable password via serial data to the engine control module/powertrain control module (ECM/PCM). If the transponders value is incorrect the BCM will send the fuel disable password to the ECM/PCM via the serial data circuit. The components of the immobilizer system are as follows: • BCM • Theft deterrent exciter module • ECM/PCM • Ignition key (Transponder) • Security indicator Power Mode Description and Operation Power to many of this vehicle's circuits are controlled by the module that is designated the Power Mode Master (PMM). This vehicle's PMM is the Body Control Module (BCM). The PMM controls which power mode (Run, Accessory, Crank, Retained Accessory Power, or Off) is active. Serial Data Power Mode On vehicles that have several control modules connected by serial data circuits, one module is the power mode master (PMM). On this vehicle, the PMM is the body control module (BCM). The PMM receives 3 discrete ignition switch signals to differentiate which power mode will be sent over the Serial Data circuits. The table below illustrates the state of these inputs in correspondence to the ignition switch position: Relay Controlled Power Mode The body control module (BCM) uses the discrete ignition switch inputs ignition 1, ignition 3 and crank to distinguish the correct power mode. Once the BCM has determined the power mode selected by the vehicle operator it will energize the Ignition relay, Run relay and retained accessory power (RAP) relay, depending on which power mode is selected. Ignition 1 Relay The relay uses a Hot At All Times B+ power source derived from the underhood electrical center. The ignition 1 relay supplies a power signal to the following circuits when the Run or Crank power mode is selected: • AC clutch relay • ABS STG angle sensor • Antilock brake system (ABS) yaw sensor • Auxiliary power drop connector • Crank relay • Cruse control switch • Electronic brake control module (EBCM) • Engine control module (ECM) • HVAC module • Ignition control module (ICM) • Instrument panel cluster (IPC) • Sensing and diagnostic module (SDM) • Transmission solenoid circuit Fail-Safe Operation Since the operation of the vehicle systems depends on the power mode, there is a fail-safe plan in place should the power mode master (PMM) fail to send a power mode message. The fail-safe plan covers those modules using exclusively serial data control of power mode as well as those modules with discrete ignition signal inputs. Serial Data Messages The modules that depend exclusively on serial data messages for power modes stay in the state dictated by the last valid PMM message until they can check for the engine run flag status on the serial data circuits. If the PMM fails, the modules monitor the serial data circuit for the engine run flag serial data. If the engine run flag serial data is True, indicating that the engine is running, the modules fail-safe to RUN. In this state the modules and their subsystems can support all operator requirements. If the engine run flag serial data is False, indicating that the engine is not running, the modules fail-safe to OFF-AWAKE. In this state the modules are constantly checking for a change status message on the serial data circuits and can respond to both local inputs and serial data inputs from other modules on the vehicle. Discrete Ignition Signals Those modules that have discrete ignition signal inputs also remain in the state dictated by the last valid PMM message received on the serial data circuits. They then check the state of their discrete ignition input to determine the current valid state. If the discrete ignition input is active, battery positive voltage, the modules will fail-safe to the RUN power mode. If the discrete ignition input is not active, open or 0 volts, the modules will fail-safe to OFF-AWAKE. In this state the modules are constantly checking for a change status message on the serial data circuits and can respond to both local inputs and serial data inputs from other modules on the vehicle. WE do not have a clue as to the shape of your vehicle , was it well maintained or is it a POS ? Checking for DTC'S - diagnostic trouble codes in all the modules on the vehicle , no cheap code reader will do this . do you know what wiring diagrams are ? service repair information ? https://www.youtube.com/watch?v=efKoWifdcag&t=2180s https://www.youtube.com/watch?v=j5GaBCPQ4Bc https://www.youtube.com/watch?v=jxKco2D9i-0&t=804s If you want to play auto mechanic you better learn what's involved .

Hi there's this website something like reliable-store and it is very amazing for manual for repairing servicing anything someone on fixya recommended it to me and I thank him even today They have full manuals and it's verrrrry cheap and mine I got free in offers 3rd time I bought it, I also had an issue with the file so the girl replaced it in 30 mins there is one website more but i don't remember its name it was 2 years back bitman something link this Try these out brother

Is it the fan for the heater/air conditioner resistor you are looking for? It is behind the fan motor which is above the passengers feet.

Sounds like a bad ignition switch.....Do not put a lot of trinkets on Your Key Ring.....The additional weight swinging, around could trigger Anti-Theft Function in The ECU disabling the Vehicle.... The ignition switch is very expensive and should be replaced by a Dealer..............

I would start with fuses and check there https://www.carcarekiosk.com/video/2001_Pontiac_Montana_3.4L_V6/fuse_interior/replace

The best solution you'll get from books at www.reliable-store.com These are books containing info on repair, service, troubleshooting, parts info, assembling dissemble, removal, error/fault codes, wiring dia grams and everything on any vehicles cars, atv, trucks. forklifts, boats, excavators etc

Could be many things, I will give you some advice like: 1- Spark plugs wire leaking to ground. 2- Injector bad fuel pressure. 3- Injector leaking 4- To be more precise Make a good engine tune-up 5- Like: Change all spark plugs (Adjust air gap) Air filter Fuel filter Clean with combustion chamber cleaner the throttle plate on both side Hope it helps.

You will need to gain access to the side pan to change the solenoid (big job)

the key barrel and the switch are 2 separate itehs if you are replacing the switch --no as the immobilizer section is in the front of the key barrel

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I suggest you try one of those instant download manuals. My nephew bought one for me when my car broke and we could fix it all by ourselves with the manual at www.reliable-store.com . This website is very good for this. ?Try it.

Look at the bottom of the drink holder there is a rubber piece remove it and there is a screw hiding. Hope it helps.

Relay Brian you need to find its location .

Hi, Yes you have an air lock in your system, you may get this sorted by 1/. Removing one of the cooling hoses & try to blow with air. 2/. Drain all the system then put your heater on inside the vehicle & have the engine running & refill the system Start to do this from a cold engine. Please leave me feed back: Malcolm Campbell, Thanks.

I, feel sorry for you, after reading your problem, but don't worry you visit the Reliable-Store they will help you for sure. Pontiac Montana

Procedures are available at autozone.com. this is a lot of work and requires good tools. Do you have a large torque wrench? http://www.autozone.com/repairinfo/repairguide/repairGuideContent.jsp?pageId=0900c152801db84b

Appears to be a Prindle switch problem.(park, neutral safety switch)