No power but battery is good

SOURCE: Will not start even with new starter and battery and new fuses and clutch switch.

Check the voltage on the big line of the battery terminal cable running to the starter it should be 12 volts with car off. This line is attached to the big nut on the starter, and also check to be sure the small black cable is connected to the bolt that holds the starter, the long thin bolt going to the starter towards the transmission bell housing. On some models of the cavalier there is a module mounted on the front of the car to fix a defect. If you face the front of the car this module is near the battery on the right and has one small bolt, it is extremly small, which is in the middle. Unplug this module and check it with a multimeter, I think pins pin 34, and 35. The module has a diagram pointing to the connection point for checking it.I would not change your alternator when you have lights and everything else but the starter is working.

Stephen

• 21873 Answers
• Posted on Feb 25, 2013

SOURCE: installed new blower motor. bearing shelled in old one. new motor won't blow. tested . it's good don't have power to moter. fuses good relay good. isthere a circuit breaker in wiring for b

I don't have a diagram for a 2008. On 2005 models the blower motor relay gets power from a 30amp fuse.
When the blower switch is in the high position the resistor is bypassed and power flows directly to the motor. The motor is grounded to the car.
The fan relay also gets power from a 7.5amp fuse and is controlled by the HVAC control on the dash.
Do you have power into and out of the relay?