DTC Troubleshooting: P2176 (40)
DTC P2176:
 Throttle Actuator Control System Idle Position Not Learned
Do not insert your fingers into the installed throttle body when you turn the ignition switch to ON (II) or while the ignition switch is ON (II). If you do, you will seriously injure your fingers if the throttle valve is activated.

NOTE:
  • Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information.
  • If DTC P2135 is stored at the same time as DTC P2176, troubleshoot DTC P2135 first, then recheck for DTC P2176.
  1. Turn the ignition switch to ON (II).
  1. Clear the DTC with the HDS.
  1. Turn the ignition switch to LOCK (0).
  1. Turn the ignition switch to ON (II), and wait 10 seconds.
  1. Check for Temporary DTCs or DTCs with the HDS.
Is DTC P2176 indicated?
YES -
Go to Step 6 .
NO -
Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the throttle body and the ECM/PCM, then clean the throttle body. ■
  1. Turn the ignition switch to LOCK (0).
  1. Disconnect the intake air duct from the throttle body.
  1. Turn the ignition switch to ON (II).
  1. Clear the DTC with the HDS.
  1. Visually check the throttle valve operation while performing the ETCS TEST in the INSPECTION MENU with the HDS.
Does the throttle valve move to its fully closed position?
YES -
Go to Step 11 .
NO -
Go to Step 12 .
  1. Check for sludge or carbon on the throttle valve.
Is there sludge or carbon on the throttle valve?
YES -
Clean the throttle body, then go to Step 21 and recheck.
NO -
Go to Step 18 .
  1. Turn the ignition switch to LOCK (0).
  1. Disconnect the throttle body 6P connector.
  1. Jump the SCS line with the HDS.
  1. Disconnect ECM/PCM connector C (49P).
  1. Connect throttle body 6P connector terminals No. 5 and No. 6 with a jumper wire.