Let the engine cool until the value of ECT SENSOR 1 is 122 °F (50 °C) or less.
Signal
Current conditions
Values
Unit
ECT SENSOR 1
?2.
Clear the DTC with the HDS.
?3.
Start the engine, and let it idle for 10 seconds or more.
?4.
Monitor the OBD STATUS for DTC P050A in the DTCs MENU with the HDS.
DTC Description
OBD STATUS
P050A Cold Start Idle Air Control System Performance Problem
Does the HDS indicate FAILED?
YES
The failure is duplicated. Go to step 6.
NO
If the HDS indicates PASSED, intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the throttle body, MAF sensor/IAT sensor 1, and the PCM. If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the freeze data/on-board snapshot. If the HDS indicates EXECUTING, keep idling until a result comes on. If the HDS indicates OUT OF CONDITION, go to step 5-1 and recheck.?
6.
Throttle body test:
Throttle body test
?1.
Select the ETCS TEST in the INSPECTION MENU with the HDS.
The IAT sensor is OK. Check for dirt, carbon, or damage in the throttle bore. If there is dirt or carbon, clean the throttle body. If there is damage in the throttle bore, replace the throttle body.?