P1106
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P1106
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
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).
You likely won't notice any drivability problems.
Causes
- MAP sensor intermittently indicates MAP greater than
12.8 psi (0.90 kg/cm).
- 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.