Possible immobiliser cut in Grand Vitara 2.0 td 2000
Sometimes when i go to start it, you let it heat up but the heater light[thats the one with the 2 curves... kinda] starts to flash and engine will only turn over but not start.I have to disconnect the lead from battery and replace it again and it starts then.Does this sound like immobilser cutting in ? Would greatly appreciate help? Right hand drive Ireland .Thanks
Re: Possible immobiliser cut in Grand Vitara 2.0 td 2000
I had the same problem, only option is garage to re set it when they give it diagnostic check. fixed mine but!!!!!!! they said i had a slight coolant leek half hour later head gasket went!!!. had it fixed now, black smoke every were and no power. think i opend a can of worms should have just sold the dam thing.
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repairpal.com > Problems > Oldsmobile > 88 Security light is flashing and car will not turn over how do I fix it. Upvote ... My caronly starts sometimes, I turn the key, it doesn't click, all lights turn off and nothing. ...Heating and AC Temperature and Air Delivery Mode Door Actuators May Fail.
I had similar problems 2 times with the automatic heat / AC module.
I suppose your system is automatic too.
First time the commands were working erratically acting weird. Sometimes was heating at full capacity blowing heads off. At other times it was not starting at all.
The whole module had to be replaced.
Second time if the car stayed in the sun the AC was heating, after starting the engine and cooling started only after achieving greater speeds (above ~60km/h). Whenever the speed decreased the system began to heat again eventually. It turned out that the engine cooling fan was broken and had to be replaced. That fan cools both the engine radiator and the AC radiator. If it is faulty your engine might be at risk of overheating at low speeds.
the engine (there are more than one engine) has a distributor. "have spark at coil down to dizzy but no spark at plugs" this can mean only 2 things. 1: spark wires are dead. all 4, kinda hard to believe huh? 2: the dizzy is way off time. so time the dizzy and now spark lands on each wire term. if not a dizzy engine, post exact version of engine and country.
your o2 sensor is bad. vsc will go on for any small DTC displayed on the MIL (cel)
P0037 LEXUS - Oxygen Sensor Heater Control Circuit Low Bank 1 Sensor 2
- Engine Light ON (or Service Engine Soon Warning Light)
- Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit open shorted to ground - Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit poor electrical connection - Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit - Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit fuse - Faulty Engine Control Module (ECM)
When is the code detected?
The P0037 is set when the ECM detects an excessively low voltage through the heated oxygen sensor heater circuit
P0037 LEXUS Description
Oxygen Sensors (O2S) or Heated Oxygen Sensors (HO2S) need to reach a minimum operating temperature of 750 degrees F to produce an accurate voltage signal. The faster the heated oxygen sensor reaches that temperature the faster the sensor will start sending an accurate signal to the Engine Control Module (ECM).
In order to achieve the require temperature, a heater element is included inside the heated oxygen sensor. The ECM controls the heated oxygen sensor heater element based on signals from the engine coolant temperature and engine load. The ECMcontrols the heater element circuit by allowing current flow to ground.
The ECM monitors the voltage signal received through the heater element circuit and determines the state of the circuit by comparing the voltage detected with the factory specifications.
Since your blower is working and it is a heat issue,thats where we'll
start,First thing is have you checked the coolant level in the radiator when
engine is cold,make sure it is filled to top,next verify you have coolant in
reserve ,Start your van and get it up to normal operation temperature,If your
heat gauge on the dash works correctly it should be 190 degrees,Now lift the
hood and locate the two heater hoses going into the heater assembly at the fire
wall,Both hoses should be hot to hold on to,if both are hot and no heat inside
your problem will be the blend air door in heater assembly. if neither hose
is that hot you need to replace the thermostat in the engine to get it up to 195
degrees. if one hose is hot and one is luke warm then the heater core is
blocked and to blame. hope this helps you.
the heating element is in 1 or 2 engine core plugs in the side of the engine block , kinda hard to see from on top but just follow the wire coming from it to the end of the cord , thats if your vehicle has the option of block heaters.
With the car warmed up,feel the heater hoses,are they both warm/hot near the firewall in the engine compartment?If they are both warm/hot,then the heater core should have circulation through it and it may be a "blend door" issue in the heater a/c assembly.If they are not warm/hot then the heater core could be dirty and plugged up and needs to be flushed.
If the above does not help,a drain and vacuum of the cooling system and vacuum refill will remove any trapped air.
Sometimes,clamping off the top rad hose and holding the engine rpm at 2000 rpm will force trapped air out of the heater core.(Watch temp gauge when trying this)
Lastly,a NEW thermostat doesn't mean its working correctly.