Chrysler 1998 Voyager Service Manual page 346

8E - 10 INSTRUMENT PANEL AND SYSTEMS
DIAGNOSIS AND TESTING (Continued)
CONDITION
ERRATIC POINTER
MOVEMENT.
FUEL GAUGE
INACCURATE.
POSSIBLE CAUSES
1. Bad CCD Fuel
Message from the Body
Controller.
2. Internal Cluster Failure.
1. Fuel Gauge Out of
Calibration.
2. Fuel Level Sending
Unit is Out of Calibration.
CORRECTION
1. (a) Use a scan tool to check the BCM. If OK, go to
Step (b). If not OK, refer to the BCM section of the
service manual to properly diagnose and repair.
(b) Refer to the Fuel section of the service manual for
the fuel level sending unit test procedure. Test unit. If
OK, look for another possible cause for fuel gauge
failure. If not OK, repair sending unit.
2. (a) Perform Cluster Self Diagnostic Test and check
for fault codes.
• If the pointer moves during test but still appears
erratic and fault codes 110 or 111 don't appear in the
odometer display, go to Step (b).
• If fault code 110 is displayed in the odometer, go to
Step (e).
• If fault code 111 appears in the odometer display to
Step (d).
• If fault code 920 is displayed in the odometer refer to
the fault code chart to identify which module is causing
the fault and repair module.
(b) Replace cluster subdial assembly. 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 main cluster pc board and use a scan tool
to calibrate cluster. If not OK, look at another possible
cause for the fuel gauge failure.
1. (a) Perform Cluster Self Diagnostic Test. If pointer is
accurate to the calibration points look for another
possible cause of failure. If pointer is inaccurate to the
calibration points, to Step (b).
(b) Use a scan tool to calibrate fuel gauge.
2. (a) Refer to the Fuel section of the service manual
for test and repair procedure.
NS