If the condition is intermittent, refer to Intermittent Conditions .
The numbers below refer to the step numbers on the diagnostic table:
If DTC P0112 can be repeated only by duplicating the Failure Records conditions. Refer to Temperature vs Resistance table. The table may be used to test the IAT sensor at various temperatures in order to evaluate the possibility of a shifted sensor that may be shorted above or below a certain temperature. If this is the case, replace the IAT sensor. If the IAT sensor appears to be OK, the fault is intermittent refer to Diagnostic Aids.
|
Step |
Action |
Values |
Yes |
No |
|---|---|---|---|---|
|
Schematic Reference: Engine Controls Schematics |
||||
|
1 |
Did you perform the Diagnostic System Check-Engine Controls? |
-- |
Go to Step 2 |
|
Does the scan tool indicate the parameter is more than specified value? |
135°C (275°F) |
Go to Step 4 |
Go to Step 3 |
|
|
Operate vehicle within Failure Records conditions. Does scan tool indicate DTC P0112 failed this ignition? |
-- |
Go to Step 4 |
Go to Diagnostic Aids |
|
|
4 |
Does the scan tool indicate the parameter is less than the specified value? |
-37°C (-34°F) |
Go to Step 6 |
Go to Step 5 |
|
5 |
Did you find, and correct the condition? |
-- |
Go to Step 8 |
Go to Step 7 |
|
6 |
Replace the IAT sensor. Refer to Intake Air Temperature (IAT) Sensor Replacement . Did you complete the replacement? |
-- |
Go to Step 8 |
-- |
|
Replace the PCM. Refer to Powertrain Control Module (PCM) Replacement . Did you complete the replacement? |
-- |
Go to Step 8 |
-- |
|
|
8 |
Does the DTC run, and pass? |
-- |
Go to Step 9 |
Go to Step 2 |
|
9 |
With a scan tool, observe the stored information, Capture Info Does the scan tool display any DTCs that you have not diagnosed? |
-- |
System OK |
|