P1933
Fuel Additive Pump Control Circuit Low
P1933 is an OBD-II diagnostic trouble code meaning: Fuel Additive Pump Control Circuit Low. Common causes: open or short circuit in the pump control circuit, fuel additive pump malfunction. Estimated repair cost: $17–89.
Symptoms
- Check Engine light comes on
- Deterioration of fuel characteristics
- Increased level of harmful emissions
- Unstable engine operation
- Reduced efficiency of the exhaust gas cleaning system
Causes
- Open or short circuit in the pump control circuit
- Fuel additive pump malfunction
- Problems with the engine control unit
- Poor contact in circuit connectors
- Faulty relay or circuit fuse
How to Fix
- Check the integrity of the pump control circuit
- Check the functionality of the fuel additive pump
- Check the contacts in the circuit connectors
- Check relays and circuit fuses
- If necessary, replace the pump or control unit
Related codes
FAQ
What does the P1933 code mean?
P1933 is an OBD-II diagnostic trouble code that indicates: Fuel Additive Pump Control Circuit Low
What causes a P1933 error code?
The most common causes of P1933 include: Open or short circuit in the pump control circuit; Fuel additive pump malfunction; Problems with the engine control unit; Poor contact in circuit connectors.
How do I fix a P1933 diagnostic trouble code?
To fix P1933: Check the integrity of the pump control circuit. Check the functionality of the fuel additive pump. Check the contacts in the circuit connectors. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1933?
Yes, but get it checked soon
How much does it cost to fix P1933?
The estimated repair cost for P1933 is $17–89. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat