Chrysler 1998 Voyager Service Manual page 343

NS
DIAGNOSIS AND TESTING (Continued)
CONDITION
NO POINTER
MOVEMENT
TACHOMETER DIAGNOSIS
POSSIBLE CAUSES
1. Internal Cluster Failure.
2. No rpm CCD Bus
Message or Zero rpm
CCD Bus Message from
Engine Controller.
INSTRUMENT PANEL AND SYSTEMS
CORRECTION
1. (a) Perform Cluster Self Diagnostic Test and check
for fault codes.
• If tachometer pointer moves to calibration points
during test and fault codes 110 or 111 don't appear in
the odometer display then failure is not in the cluster.
Look for another possible cause of failure.
• If the pointer doesn't move during test, go to Step
(b).
• If fault code 110 is displayed in the odometer, go to
Step (b).
• If fault code 111 is displayed in the odometer then go
to Step (f).
• If fault codes 920 or 940 are displayed in the
odometer display refer to the fault code chart to identify
which module is causing the fault an repair module.
(b) Replace main cluster pc board. Go to Step (c).
(c) Connect cluster into instrument panel wiring
harness. Place it back into the proper position in the
instrument panel. Put in the top two mounting screws to
hold the cluster in place. DO NOT COMPLETELY
INSTALL CLUSTER TO INSTRUMENT PANEL UNTIL
UNIT IS CALIBRATED AND TESTED. Go to Step (d).
(d) use a scan tool to calibrate cluster and perform Self
Diagnostic Test. If OK, continue installation. If not OK,
go to Step (e).
(e) Replace subdial assembly and use a scan tool to
calibrate cluster. If not OK, look at another possible
cause for the tachometer failure.
(f) Use a scan tool to calibrate tachometer and perform
Self Diagnostic Test. If OK, stop. If not OK, go to Step
(b).
2. Check the PCM using a scan tool. Refer to the PCM
section of the manual to properly diagnose and repair.
8E - 7