P0120 , P0121
Read the instructions below then start the fault diagnostic procedure.
Symptom: Check Engine on. Poor performance.
| P0120 , P0121 |
P0120 Manifold Absolute Pressure Sensor Circuit. Short to B+.
P0121 Manifold Absolute Pressure Sensor Circuit. Open / Short to Ground.
Fault symptom
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Check Engine on. Poor performance.
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Conditions
The following conditions apply for the DTC in question:| • |
P0120:
The voltage on the control module sensor input exceeds 4.4 V for 8 seconds or 5.2 V for 0.6 seconds.
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P0121:
Voltage on control module sensor input is below 0.9 V for 5 seconds.
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Diagnostic help
P0120: The control module uses 102.4 kPa as a substitute value. The reading on the diagnostic tool is 3500 hPa. If P0115, P0120 and P0195 are present in the control module then the lead to pin 93 is shorted to B+. The short can be located anywhere in the circuit.P0121: The control module uses 1024 hPa as a substitute value. The reading on the diagnostic tool is 0 kPa.
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