Chrysler 300M 2002 Service Manual page 2106

Symptom:
*SPEEDOMETER GAUGE NOT OPERATING PROPERLY
ATTEMPT TO COMMUNICATE WITH THE PCM
ENGINE TROUBLE CODES
INSTRUMENT CLUSTER SELF TEST
OBSERVE THE VEHICLE SPEED DISPLAY IN THE PCM
OBSERVE THE VEHICLE SPEED DISPLAY IN THE INSTRUMENT CLUSTER
POWERTRAIN CONTROL MODULE
TEST
1 Turn the ignition on.
With the DRB, select Body, Body Computer, System Test then PCM Monitor.
Is the PCM active on bus?
Yes → Go To 2
→ Refer to the Communications category for the related symptom(s).
No
2 Turn the ignition off.
During the self test all gauges should move from their lowest calibration point to
their highest calibration point then back down to its lowest.
Calibration points for the Speedometer: 0 MPH (0 KM/H), 20 MPH (40 KM/H) , 60
MPH (100 KM/H), 120 MPH (210 KM/H), 60 MPH (100 KM/H), 20 MPH (40 KM/H),
0 MPH (0 KM/H).
While holding the trip/reset button down on the instrument cluster, turn the ignition
forward one position (unlock/off position) to start the MIC self test, release the
button.
Did the Speedometer pass the self test?
Yes → Go To 3
→ Replace the Instrument Cluster.
No
3 With the DRB read ENGINE DTC's.
Are there any engine DTC's present?
Yes → Refer to symptom list for problems related to DRIVABILITY.
→ Go To 4
No
POSSIBLE CAUSES
ACTION
Perform BODY VERIFICATION TEST - VER 1.
Perform BODY VERIFICATION TEST - VER 1.
Perform BODY VERIFICATION TEST - VER 1.
INSTRUMENT CLUSTER
383
APPLICABILITY
All
All
All