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Mechanical Help Mazda 3
- Thread starter Rohan27
- Start date
http://engine-codes.com/p2100.html
"Throttle control motor relay circuit open"
The throttle control motor is built into the throttle body (and usually can't be bought separately), but what has me concerned is that this is discussing the relay circuit, not the motor itself. I don't know where the relay in question is. The problem may also involve the wiring from the relay to the throttle body or ECU.
"Throttle control motor relay circuit open"
The throttle control motor is built into the throttle body (and usually can't be bought separately), but what has me concerned is that this is discussing the relay circuit, not the motor itself. I don't know where the relay in question is. The problem may also involve the wiring from the relay to the throttle body or ECU.
Peck
Well-known member
Sounds like a vacuum leak along the air intake. Check the boots that connect to both the TB and the ICV (throttle body and idle control valve). That would cause the p2100 code if there is a Crack in the boots. As for the B1318, get yourself an OBDII reader and perform an alternator test. You might have a faulty altenator. As for low coolant, check to see if you have a small leak from one of your coolant sensors. The gasket could have gone on them and you could have a small leak, and over time it would drain your coolant. Or you have a cooked head gasket. And that could also cause those symptoms.
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