Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Controller Function Test
Turn ignition off. Check controller function by connecting a 12-volt test light to test terminal on controller. Position test light so it can be viewed from driver's position. Turn ignition on. Note system operation and compare test light times to TEST LIGHT TIMES table. If test light times are within specification, system function is correct. If test light times are out of specification, disconnect power at both batteries and replace controller unit. Repeat this step.
| Controller (1) Temp. (°F) | (2) "Wait To Start" "ON" Time: Seconds | (3) Test Lamp Total Time: Seconds | ||||||
|---|---|---|---|---|---|---|---|---|
| -20 | 7-15 | 35-70 | ||||||
| 0 | 7-12 | 25-60 | ||||||
| 35 | 5-12 | 15-35 | ||||||
| 70 | 3-5 | 7-15 | ||||||
| 105 | 1-3 | 3-5 | ||||||
| 140 | 1 or Less | 1-3 | ||||||
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NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.