If the PUMP ENGAGED light doesn't illuminate after the pump shift lever is moved from the road to pump, and incomplete shift has occurred, which should be confirmed?

If the PUMP ENGAGED light doesn't illuminate after the pump shift lever is moved from the road to pump, and incomplete shift has occurred, which should be confirmed?

• A. Air pressure is > 80 psi
• B. Parking Brake is applied
• C. All of the above
• D. Light bulbs are functional

Answer: (C)

The key idea is that the PUMP ENGAGED indicator relies on three things being true: sufficient air pressure, the parking brake status, and a healthy electrical signal to the light. If the pump shift lever is moved to pumping and the light doesn’t come on, you should verify all three. First, check that air pressure is above the minimum threshold (80 psi). If pressure is too low, the pump can’t engage properly and the indicator won’t illuminate, even if you’ve moved the lever correctly. Second, confirm the parking brake is applied. Many pump engagements require the brake to be set to allow safe completion of the shift and to complete the circuit that powers the light. If the brake isn’t applied, the system may not engage fully or the light may not activate. Third, make sure the light itself is functional. A burned-out bulb or a fault in the circuit can keep the PUMP ENGAGED light dark even when the pump is ready or engaged. Because any one of these conditions can prevent the light from lighting up after an incomplete shift, you should confirm all three.

The key idea is that the PUMP ENGAGED indicator relies on three things being true: sufficient air pressure, the parking brake status, and a healthy electrical signal to the light. If the pump shift lever is moved to pumping and the light doesn’t come on, you should verify all three.

First, check that air pressure is above the minimum threshold (80 psi). If pressure is too low, the pump can’t engage properly and the indicator won’t illuminate, even if you’ve moved the lever correctly.

Second, confirm the parking brake is applied. Many pump engagements require the brake to be set to allow safe completion of the shift and to complete the circuit that powers the light. If the brake isn’t applied, the system may not engage fully or the light may not activate.

Third, make sure the light itself is functional. A burned-out bulb or a fault in the circuit can keep the PUMP ENGAGED light dark even when the pump is ready or engaged.

Because any one of these conditions can prevent the light from lighting up after an incomplete shift, you should confirm all three.