Vehicles impacted by this bulletin may show the following OBD DTC.
- P0506 [1] Idle Control System RPM Lower Than Expected
- P0101 [1] Mass or Volume Air Flow "A" Circuit Range/Performance Problem
- P1101 [1] Reverse Inhibit Control Circuit Malfunction
- P0172 [1] System too Rich (Bank 1)
- P0299 [1] Turbocharger/Supercharger "A" Underboost Condition