Code P0650, abs, service soon. Suggestions?
Thread Starter
Instructor
Joined: Jun 2009
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From: pa
Code P0650, abs, service soon. Suggestions?
my 02 z06's service soon came on,service abs, as well as ah and tc off. i turned it off and it was fine for about 30 miles, then it came on again. i scanned it and it was p0650 twice. any ideas? car has 30k miles. all stock, nothing done but a slp exhaust.
the code is indicator light? MIL..doesnt really tell me much though
thanks a lot everyone!
the code is indicator light? MIL..doesnt really tell me much though
thanks a lot everyone!
Tech Contributor
Joined: Jan 2007
Posts: 19,401
Likes: 1,141
From: Dyer, IN
my 02 z06's service soon came on,service abs, as well as ah and tc off. i turned it off and it was fine for about 30 miles, then it came on again. i scanned it and it was p0650 twice. any ideas? car has 30k miles. all stock, nothing done but a slp exhaust.
the code is indicator light? MIL..doesnt really tell me much though
thanks a lot everyone!
the code is indicator light? MIL..doesnt really tell me much though
thanks a lot everyone!
Burning Brakes
Joined: Jan 2006
Posts: 1,170
Likes: 27
From: Magnolia Greens NC
Code PO650
Something is wrong with your check engine light.
voltage is supplied directly to the Malfunction Indicator Lamp (MIL) . The PCM controls the lamp by grounding the control circuit via an internal switch called a driver. The primary function of the driver is to supply the ground for the component being controlled. Each driver has a fault line which is monitored by the PCM. When the PCM is commanding a component ON, the voltage of the control circuit should be low (near 0 volts ). When the PCM is commanding the control circuit to a component OFF, the voltage potential of the circuit should be high (near battery voltage). If the fault detection circuit senses a voltage other than what is expected, the fault line status will change causing the DTC to set.
The PCM also communicates with the EBCM & this may be why the other ( service abs,t/c & a/h) warnings are indicated... battery terminals tighten to spec? ..........checked all grounds? defective EBCM?
voltage is supplied directly to the Malfunction Indicator Lamp (MIL) . The PCM controls the lamp by grounding the control circuit via an internal switch called a driver. The primary function of the driver is to supply the ground for the component being controlled. Each driver has a fault line which is monitored by the PCM. When the PCM is commanding a component ON, the voltage of the control circuit should be low (near 0 volts ). When the PCM is commanding the control circuit to a component OFF, the voltage potential of the circuit should be high (near battery voltage). If the fault detection circuit senses a voltage other than what is expected, the fault line status will change causing the DTC to set.
The PCM also communicates with the EBCM & this may be why the other ( service abs,t/c & a/h) warnings are indicated... battery terminals tighten to spec? ..........checked all grounds? defective EBCM?
Last edited by trussme; Jan 27, 2010 at 01:50 PM.
Thread Starter
Instructor
Joined: Jun 2009
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From: pa
I took it to autozone and used their tool, it was displayed like this:
P0650
P0650
no other codes.
but like i said the ah, tc, and abs came on twice about 50 miles ago. have not came on since. and went right off after i shut off and restarted the car...
thanks for all your input.
my cel comes on with the ignition, so i think it works fine.
P0650
P0650
no other codes.
but like i said the ah, tc, and abs came on twice about 50 miles ago. have not came on since. and went right off after i shut off and restarted the car...
thanks for all your input.
my cel comes on with the ignition, so i think it works fine.
Safety Car
Joined: Jan 2001
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From: Boise ID
Thread Starter
Instructor
Joined: Jun 2009
Posts: 224
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From: pa
correction, cel does not come on when ignition is on. but it came on when the service soon came on. but then i shut the car off and restarted it. and it was fine, then it did it about 20 miles later. after i shut the car off that time it hasnt happened in over 100 miles? wtf?
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Tech Contributor
Joined: Jan 2007
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From: Dyer, IN
correction, cel does not come on when ignition is on. but it came on when the service soon came on. but then i shut the car off and restarted it. and it was fine, then it did it about 20 miles later. after i shut the car off that time it hasnt happened in over 100 miles? wtf?
Thread Starter
Instructor
Joined: Jun 2009
Posts: 224
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From: pa
thanks again everyone!
