Spray 9-inch square baking dish with vegetable cooking spray.
In 1 1/2-quart casserole, combine peanut butter, margarine, honey and corn syrup.
Microwave at High for 1 to 2 minutes, or until hot and bubbly.
Stir until smooth.
Stir in carob powder until blended.
Mix in cereal, raisins and wheat germ until coated.
Press cereal mixture into bottom of prepared dish.
Chill for 3 hours.
Cut into bars.