P1296 Code: No 5 Volts to MAP Sensor
🟠 Moderate severity · drivable
The engine will usually run, but it may run rough, stall, or lack power, so have it checked soon.
What P1296 means
The manifold absolute pressure (MAP) sensor measures the vacuum in the intake and needs a 5-volt reference signal to work. P1296 means that 5 volts is missing, usually because of a wiring problem or a bad sensor. Without the MAP reading, the computer can't judge engine load properly and the fuel mix suffers. This code is most often seen on Chrysler, Dodge, and Jeep vehicles.
Symptoms
- Check engine light is on
- Poor fuel economy
- Hesitation or lack of power
- Rough idle or stalling
Common causes
- most common: Wiring problem (open or short) in the MAP sensor 5-volt circuit
- common: Bad connector or corroded terminals at the sensor
- common: Faulty MAP sensor
- rare: Engine computer (PCM) fault
How to fix it
| Fix | DIY? | Typical cost |
|---|---|---|
| Inspect and repair the MAP sensor wiring and connector | Yes | $20–100 |
| Test and replace the MAP sensor if it is faulty | Yes | $40–120 |
| If wiring and sensor check out, have the PCM tested | Mechanic | $150–400 |
Frequently asked questions
Can I drive with a P1296 code?
Yes, usually, but expect rough running, worse fuel economy, and possible loss of power until it's fixed.
What does the MAP sensor do?
It measures the vacuum inside the intake manifold so the computer knows how much load the engine is under and how much fuel to deliver.
How much does it cost to fix P1296?
A new MAP sensor is about $40–$120. If the problem is in the wiring, the repair often costs less and is mostly shop labor.
Related codes
P0106
P0106 Code: Manifold Absolute Pressure Sensor Range/Performance
P0107P0107 Code: Manifold Absolute Pressure Sensor Circuit Low
P0108P0108 Code: Manifold Absolute Pressure Sensor Circuit High
Updated 2026-08. This page is informational and not a substitute for professional diagnosis.