Fig 1: Manifold Absolute Pressure Sensor Circuit Schematic

Courtesy of CHRYSLER LLC

When Monitored : Engine running for at least 30 seconds and no fault in the throttle valve actuator.
Set Condition : Low limit: The Manifold Absolute Pressure (MAP) Sensor reading is below a calculated value when the throttle valve angle is greater than 80° for approximately 5 seconds. High limit: The MAP Sensor reading is greater than a calculated value that is determined by engine speed and throttle valve angle for approximately 5 seconds.

Possible Causes

MANIFOLD ABSOLUTE PRESSURE SENSOR SIGNAL CIRCUIT OPEN

MANIFOLD ABSOLUTE PRESSURE SENSOR SIGNAL CIRCUIT SHORT TO GROUND

MANIFOLD ABSOLUTE PRESSURE SENSOR SIGNAL CIRCUIT SHORT TO VOLTAGE

5-VOLT SUPPLY CIRCUIT OPEN

5-VOLT SUPPLY CIRCUIT SHORT TO GROUND

5-VOLT SUPPLY CIRCUIT SHORT TO VOLTAGE

5-VOLT SUPPLY CIRCUIT SHORT TO SENSOR GROUND CIRCUIT

MANIFOLD ABSOLUTE PRESSURE SENSOR SIGNAL CIRCUIT SHORT TO SENSOR GROUND CIRCUIT

MANIFOLD ABSOLUTE PRESSURE SENSOR SIGNAL CIRCUIT SHORT TO 5-VOLT SUPPLY CIRCUIT

SENSOR GROUND CIRCUIT OPEN

ENGINE OIL SENSOR

MANIFOLD ABSOLUTE PRESSURE SENSOR

POWERTRAIN CONTROL MODULE

For a complete Powertrain Control Module Circuit Diagram, refer to SCHEMATICS AND DIAGRAMS .

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.

Safety Warning

P0106-Manifold Absolute Pressure Sensor Performance: Notes