P0112
Read the instructions below then
start the fault diagnostic procedure.
Symptom: CHECK ENGINE.
Starting difficulties when cold.
Intake Air Temperature Sensor Circuit. Short to Ground.
Fault symptoms
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Starting difficulties when cold.
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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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Voltage on input falls below 0.12 V for more than 3.1 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 50 °C.
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OK report:
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Voltage on input exceeds 0.12 V for more than 3.1 s.
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Fault handling:
(See section
Fault handling III, other emissions-related components and functions
for more information)
Diagnostic help
Fault diagnosis concerns an electrical fault in connecting leads or in the sensor.
Functions in the diagnostic tool related to the fault:
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Read value:
Intake Air Temperature (
Intake Air Temperature Sensor)
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See also description of read value under
"Read Values" menu
for more information.
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.
