DTC P2135
The throttle position (TP)
sensors 1 and 2 are located within the throttle body assembly. The TP
sensors share a common 5-volt reference circuit and a common low reference
circuit. The 5-volt reference circuit is also shared with the accelerator pedal
position (APP) sensor 2. The 5-volt reference voltage is supplied on
2 separate engine control module (ECM) terminals, but the terminals are
connected internally to the same voltage supply. Each TP sensor has an
individual signal circuit, which provides the ECM with a signal voltage
proportional to throttle the plate movement. When the throttle plate is in the
closed position, the TP sensor 1 signal voltage is near the low reference
and increases as the throttle plate is opened. The TP sensor 2 signal
voltage at closed throttle is near the 5-volt reference and decreases as the
throttle plate is opened. If the ECM detects that the TP sensors are not within
a predicted value from each other, DTC P2135 sets.
This diagnostic procedure supports
the following DTC:
DTC P2135 Throttle Position
(TP) Sensor 1-2 Correlation
Conditions
for Running the DTC
|
• |
DTCs P0122, P0123, P0222, P0223,
P0601, P0602, P0603, P0604, P0606, P0607, P0641, P0651 are not set. |
|
• |
The ignition is ON. |
|
• |
DTC P2135 runs continuously
once the above condition is met. |
Conditions
for Setting the DTC
The ECM detects that the difference
between TP sensor 1 and TP sensor 2 is more than the predicted value
for less than 1 second.
Action
Taken When the DTC Sets
Conditions
for Clearing the MIL/DTC
|
• |
The control module turns OFF the
malfunction indicator lamp (MIL) after 3 consecutive ignition cycles
that the diagnostic runs and does not fail. |
|
• |
A current DTC, Last Test Failed,
clears when the diagnostic runs and passes. |
|
• |
A history DTC clears after
40 consecutive warm-up cycles, if no failures are reported by this or
any other emission related diagnostic. |
|
• |
Clear the MIL and the DTC with a
scan tool. |
|
Step |
Action |
Value(s) |
Yes |
No |
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Schematic
Reference: Engine
Controls Schematics Connector
End View Reference: Engine
Control Module (ECM) Connector End Views or Engine
Controls Connector End Views |
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|
Did you perform the Diagnostic
System Check - Vehicle? |
-- |
Go
to Step
2 |
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|
Observe the DTC information with a
scan tool. Is DTC P0101, P0121, P0122,
P0123, P0222, P0223, P2120, P2122, P2123, P2125, P2127, P2128 also set? |
-- |
Go
to Step 3
|
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Is the resistance more than the
specified value for any circuit? |
5 ohms |
Go
to Step 7
|
Go
to Step 4
|
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|
Test the signal circuit of the TP
sensor 1 for a short to the signal circuit of TP sensor 2. Refer to
Circuit
Testing and Wiring
Repairs . Did you find and correct the
condition? |
-- |
Go
to Step 9
|
Go
to Step 5
|
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|
Test for an intermittent and for a
poor connection at the TP sensor. Refer to Testing
for Intermittent Conditions and Poor Connections and Connector
Repairs . Did you find and correct the
condition? |
-- |
Go
to Step 9
|
Go
to Step 6
|
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|
Test for an intermittent and for a
poor connection at the ECM. Refer to Testing
for Intermittent Conditions and Poor Connections and Connector
Repairs . Did you find and correct the
condition? |
-- |
Go
to Step 9
|
Go
to Step 8
|
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|
Repair the high resistance in the
circuit that measured above the specified value. Refer to Wiring
Repairs . Did you complete the repair? |
-- |
Go
to Step 9
|
-- |
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|
Replace the throttle body
assembly. Refer to Throttle
Body Removal . Did you complete the replacement? |
-- |
Go
to Step 9
|
-- |
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Did the DTC fail this ignition? |
-- |
Go
to Step 2
|
Go
to Step 10
|
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|
Observe the Capture Info with a
scan tool. Are there any DTCs that have not
been diagnosed? |
-- |
System
OK |
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