Speedometer Inaccurate Or Inoperative - Jeep Wrangler TJ 2006 Diagnostic Manual

Symptom:

*SPEEDOMETER INACCURATE OR INOPERATIVE

PCM DTC PRESENT
INCORRECT CONFIGURATION
INTERMITTENT CONDITION
INSTRUMENT CLUSTER
TEST
1 With the DRBIII , read DTCs.
Are any Powertrain DTCs present?
Yes → Refer to DRIVEABILITY for the related symptom(s).
→ Go To 2
No
2 With the DRBIII , ensure that the Instrument Cluster is correctly configured for Tire
Size, Axle Type, and Transfer Case Type.
Are the Instrument Cluster configurations correct?
Yes → Go To 3
→ Using the DRBIII , select Miscellaneous, Configure Cluster for
No
3 Turn the ignition off.
Perform the Instrument Cluster self test.
Press and hold the Trip Reset button.
Turn the ignition on.
Observe the Speedometer during the self test.
NOTE: The self test can also be initiated using the DRBIII .
The Speedometer should pause at the following calibration points:
Cal Point 1: 20 MPH (40km/h Canada/BUX) (40 MPH Aus/Japan)
Cal Point 2: 55 MPH (80 km/h Canada/BUX) (80 MPH Aus/Japan)
Cal Point 3: 75 MPH (120 km/h Canada/BUX) (120 MPH Aus/Japan)
Did the Speedometer pause at the correct calibration points?
Yes → The condition is not present at this time. Monitor DRBIII
→ Replace and configure the Instrument Cluster in accordance with
No
POSSIBLE CAUSES
ACTION
the correct Tire Size, Axle Type, and Transfer Case Type. With the
DRBIII , erase DTCs.
parameters while wiggling the related wire harness. Refer to any
Technical Service Bulletins (TSB) that may apply. Visually in-
spect the related wiring harness and connector terminals.
the Service Information.
INSTRUMENT CLUSTER
167
APPLICABILITY
All
All
All