P1106

Description
MAP SENSOR CIRCUIT INTERMITTENT HIGH VOLTAGE

Manifold Absolute Pressure (MAP) sensor responds to changes
in intake manifold pressure. PCM supplies 5-volt reference and ground
for MAP sensor. MAP sensor provides a signal to the PCM relative to
pressure changes in intake manifold pressure (vacuum). A low voltage
signal, about 2 volts on VIN K or 1.5-2.5 volts on VIN 1, is sent to
PCM on signal circuit at closed throttle (high vacuum) idle. A high
voltage signal, about 4 volts or greater on both engines, is sent at
wide open throttle (low vacuum).
Symptoms
You likely won't notice any drivability problems.

Causes

• MAP sensor intermittently indicates MAP greater than
  12.8 psi (0.90 kg/cm).

Possible Solutions

• If DTC P0108 is also set, diagnose DTC P0108 before
  proceeding.
• Check for faulty sensor ground circuit terminal at MAP
  sensor.
• Locate and repair intermittent open/short circuit.
• Check for faulty connections or damaged harness.