Chrysler Sebring 2004 Service Manual page 1986

P0121-TPS VOLTAGE DOES NOT AGREE WITH MAP —
TEST
2 Start the engine.
With the DRBIII , monitor the MAP Sensor voltage.
Snap the throttle.
Does the MAP Sensor voltage vary from below 2.0 volts at idle to above 3.5 volts at
WOT.
Yes → Go To 3
→ Go To 7
No
3 Turn the ignition on.
With the DRBIII , monitor the TP Sensor voltage while slowly depressing the
throttle pedal from the idle position to the wide open throttle position.
Does voltage start approximately at 0.8 of a volt and go above 3.5 volts with a smooth
transition?
Yes → Refer to the INTERMITTENT CONDITION symptom in the
→ Go To 4
No
4 Turn the ignition off.
Disconnect the TP Sensor harness connector.
Disconnect the PCM harness connector.
Measure the resistance of the (K6) 5-volt Supply circuit from the TP Sensor harness
connector to the PCM harness connector.
Is the resistance below 5.0 ohms?
Yes → Go To 5
→ Repair the high resistance in the (K6) 5-volt Supply circuit.
No
5 Turn the ignition off.
Disconnect the TP Sensor harness connector.
Disconnect the PCM harness connector.
Measure the resistance of the (K6) 5-volt Supply circuit from the TP Sensor harness
connector to ground.
Is the resistance above 100k ohms?
Yes → Go To 6
→ Repair the short to ground in the (K6) 5-volt Supply circuit.
No
6 Connect a jumper wire between the (K22) TP Sensor Signal circuit and the (K4)
Sensor ground circuit .
Does the DRBIII display TP voltage from approximately 4.9 volts to below 0.5 of a
volt?
Yes → Replace the TP Sensor.
→ Go To 13
No
ACTION
Driveability category.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
DRIVEABILITY - GAS
57
Continued
APPLICABILITY
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