P1104
MAP Sensor Low Voltage
P1104 is an OBD-II diagnostic trouble code meaning: MAP Sensor Low Voltage. Common causes: map sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $17–56.
Symptoms
- Unstable engine idling
- Power dips during acceleration
- Increased fuel consumption
- Difficulty starting the engine
- Check Engine Light Is On
Causes
- MAP sensor malfunction
- Open or short circuit in the sensor circuit
- Poor contact in the sensor connector
- Problems with power or grounding of the circuit
- ECU malfunction (rare)
How to Fix
- Check the integrity of the wiring and connectors of the MAP sensor
- Measure the voltage at the sensor (should be within 4.5-5V with the ignition on)
- Check sensor resistance (compare with factory values)
- Clean or replace MAP sensor if necessary
- Flash or replace the ECU if it malfunctions
Related codes
Error P1104 by Vehicle Brand
FAQ
What does the P1104 code mean?
P1104 is an OBD-II diagnostic trouble code that indicates: MAP Sensor Low Voltage
What causes a P1104 error code?
The most common causes of P1104 include: MAP sensor malfunction; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Problems with power or grounding of the circuit.
How do I fix a P1104 diagnostic trouble code?
To fix P1104: Check the integrity of the wiring and connectors of the MAP sensor. Measure the voltage at the sensor (should be within 4.5-5V with the ignition on). Check sensor resistance (compare with factory values). For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1104?
Limited driving only, diagnose soon
How much does it cost to fix P1104?
The estimated repair cost for P1104 is $17–56. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat