Chrysler 300M 2002 Service Manual page 2829

TRANSMISSION
P0120-THROTTLE POSITION SENSOR SIGNAL CIRCUIT —
TEST
7 The conditions necessary to set this DTC are not present at this time.
Using the schematics as a guide, inspect the wiring and connectors specific to this
circuit.
Pay particular attention to the the point where the TPS signal and sensor ground
circuits splice off from the engine circuits.
Wiggle the wiring and connectors while checking for shorts and open circuits.
Were there any problems found?
Yes → Repair as necessary.
→ Go To 8
No
8 Ignition On, Engine Not Running.
With the DRBIII , read the TPS voltage.
While monitoring the DRBIII , slowly open and close the Throttle.
Is the voltage change smooth?
Yes → Test Complete.
→ Replace the Throttle Position Sensor per the Service Information.
No
ACTION
Perform 42LE TRANSMISSION VERIFICATION TEST - VER 1.
Perform 42LE TRANSMISSION VERIFICATION TEST - VER 1.
30
Continued
APPLICABILITY
All
All