Acura throttle update
This TSB applies to 2009-2010 Acura TL models. The MIL may illuminate with DTC P2118 stored (throttle actuator current range/performance problem).
The PCM misinterprets ETCS (electronic throttle control system) inputs as a malfunction. The corrective action requires updating the PGM-Fl software with the HDS, using HDS software version 2.022.104 or later.
The updated PGM-Fi software program IDs and P/Ns are shown below. If the HDS is loaded with the latest software, and it displays No Update Needed during the update, the software for this bulletin is already installed.
YEAR/MODEL PROGRAM ID PROGRAM P/N
2009 TL (base/tech)………………K1A560………………..37805-RK1-A56
2009 TL AWD (base/tech)……..…K2A780……….……….37805-RK2-A78
2010 TL 5A/T (base/tech)……..….K1A640…….………….37805-RK1-A64
2010 TL AWD 5A/T (base/tech)….K2A840………………..37805-RK2-A84
2010 TL AWD 6M/T (tech)…….…K2A040………………..37805-RK2-A04
- Update the PGM-Fi software with the HDS.
- Start the engine. If DTC P2118 does not display, the repair is complete. If this DTC does reset, continue with normal troubleshooting.
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