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Hello guys any advice please my forester sg5 stop starting yesterday I've check for a code and crankshaft senzor says was faulty I change sensor and car won't start again I've checked all fuze and all sensor on the engine bay and all have 12v only crankshaft sensor is 0v I have no power on the wires to the crankshaft sensor
The crankshaft sensor produces voltage and counts the position of the Reeth on crank timing wheel, it doesn't recieve a voltage, if unplugged to test with Ign on, ecu will record it as fault condition
Best thing to do is clear all codes and try starting it then check codes again
The crankshaft sensor produces voltage and counts the position of the Reeth on crank timing wheel, it doesn't recieve a voltage, if unplugged to test with Ign on, ecu will record it as fault condition
Best thing to do is clear all codes and try starting it then check codes again
I've clear all code change sensor car won't start. Ive unplugged the sensor and check voltage is 0. I've plugged the sensor again clear fault code and I read live stream with the diagnostic crankshaft remain off
When you put the key in the ignition does the ECU immobiliser indicator turn off?? (Red key symbol on dash)
When you say "it doesn't start" what actually happens when you turn the ignition key to the start position??
Does it turn over ??
Does it turn over but not fire??
Last edited by Don Clark; 19 June 2022 at 03:16 PM.
When you say "it doesn't start" what actually happens when you turn the ignition key to the start position??
Does it turn over ??
Does it turn over but not fire??
When you put the key in the ignition does the ECU immobiliser indicator turn off?? (Red key symbol on dash)
Any additional alarm system fitted to it??
Can you hear the fuel pump prime
Have you checked the contents of the pdf file - is the mentioned wiring sound?
When you put the key in the ignition does the ECU immobiliser indicator turn off?? (Red key symbol on dash)
Any additional alarm system fitted to it??
Can you hear the fuel pump prime
Have you checked the contents of the pdf file - is the mentioned wiring sound?
The fuel pump is working I can hear it. Also I don't think I have any red key simbol on my dashboard no alarm is fitted to the car I will check the harness again tomorrow
Have you put the old sensor back on to see if it starts?
Could be wrong or faulty sensor if the old one works.
I've try both off them also on live data when I start the engine the crankshaft sensor is off I've read all sensor live all are on only crankshaft is off
Could be a problem with the Immobiliser ECU or MB Fuse SBF #5.
Do you get a door open warning light on the dash?
If both not working you may have a blown link on the combimeter or Main Fuse board Fuse #2
See attached (I've assumed it RHD)
Last edited by Don Clark; 19 June 2022 at 07:42 PM.
Could be a problem with the Immobiliser ECU or MB Fuse SBF #5.
Do you get a door open warning light on the dash?
If both not working you may have a blown link on the combimeter or Main Fuse board Fuse #2
See attached (I've assumed it RHD)
The open door warning is on yes. Also no blinking lights when I turn switch on somebody says if any lights blinks on dashboard may be the immobilizer
Could be a problem with the Immobiliser ECU or MB Fuse SBF #5.
Do you get a door open warning light on the dash?
If both not working you may have a blown link on the combimeter or Main Fuse board Fuse #2
See attached (I've assumed it RHD)
Thanks for your help bro tomorrow I will check resistance at the crankshaft wires also check the key and I will make a video with the diagnostic connected when I try start the engine
Could be a problem with the Immobiliser ECU or MB Fuse SBF #5.
Do you get a door open warning light on the dash?
If both not working you may have a blown link on the combimeter or Main Fuse board Fuse #2
See attached (I've assumed it RHD)
I check the resistance at the crankshaft and is 48.1 check attachment
I've checked all steps on that list still nothing also I swapped the crankshaft sensor from a friend car and nothing I put my sensor on his car works just fine I don't know what else to check now maybe is a ecu issue. Now I'm waiting for a key guy to come and check
19 June 2022, 07:44 AM
Forester sg5 engine won't start
