Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
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2135 is for a bad throttle body if it came up after cleaning it. You may have to replace it with a new one or wait and see if it dries out and begins to work again.
Yes that's correct. Below is the code definition. What it is saying is that the computer has no idea what position the throttle plate is in. That would be caused by moving it by hand or the cleaner penetrating the unit and damaging the electronics. See below
The throttle position (TP) sensors 1 and 2 are potentiometer type sensors each with three circuits:
The TP sensors are used to determine the throttle plate angle for various engine management systems. The control module provides each TP sensor a 5-volt reference circuit and a low reference circuit. The TP sensors then provide the control module with signal voltage proportional to throttle plate movement. Both TP sensor signal voltages are low at closed throttle and increase as the throttle opens. When the control module detects that TP sensor 1 signal and TP sensor 2 signals disagree or signal voltages are outside the predetermined range, this DTC sets.
Conditions for Running the DTC
Conditions for Setting the DTC
Action Taken When the DTC Sets
Conditions for Clearing the MIL/DTC
The number below refers to the step number on the diagnostic table.
When the TAC module detects a condition within the TAC system, more than 1 TAC system related DTC may set. This is due to the many redundant tests run continuously on this system. Locating and repairing 1 individual condition may correct more than 1 DTC. Disconnecting components during testing may set additional DTCs. Remember this if you review the stored information in Capture Info.