P1632
Read the instructions below then
start the fault diagnostic procedure.
Symptom: CHECK ENGINE.
Loss of performance.
Internal Fault. Atmosphere Pressure Sensor.
Fault symptoms
On-Board Diagnostics
Type of diagnosis:
Enable criteria:
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Battery voltage should be 10.2-15.8 V.
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Fault criteria:
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When voltage on the input falls below 1.2 V for more than 2.1 s.
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Dependents:
System reaction to a fault:
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The control module will continue to work with a substitute value of 100 kPa.
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The following limitation apply: Pedal position sensor adjustable to max 60 %, fuel quantity max 20 mm
3
/combustion as well as heating function, EGR and boost pressure control switched off.
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OK report:
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When voltage on the input exceeds 1.2 V for more than 2.1 s.
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Fault handling:
(See section
Fault handling III, other emissions-related components and functions
for more information)
Diagnostic help
The diagnosis concerns an electrical fault on the internal atmospheric pressure sensor.
Functions in the diagnostic tool related to the fault:
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Read value:
Atmosphere Absoslute Pressure
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Checking the wiring
Jiggle the wiring harness at several points and in different directions to detect intermittent breaks and short circuits. Observe the multimeter, diagnostic tool or test lamp during the check.
