1993 CHEVROLET PLYMOUTH ACCLAIM instrument panel

CLUSTER ASSEMBLY
REMOVALÐCLUSTER WITH TRANSMISSION RANGE
INDICATOR FROM STEERING COLUMN (1) Disconnect battery to assure no air bag system
fault codes are stored. (2) Remove cluster bezel (Fig. 9).
Fig. 7 Brake System Warning Lamp Diagnosis
Fig. 8 Cluster Bezel
Fig. 9 Instrument panel Bezels
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(3) Remove lower steering column cover (Fig. 10
through 14).
(4) Place gear shift lever in neutral or park.
(5) Remove guide tube from behind fuse block and
disconnect cable eyelet from column actuating arm. (6) Release lock bar on column insert, squeeze legs
together and remove from column (Fig. 13). (7) Secure insert and cable guide out of the way.
(8) Remove the rear window defogger bezel and ra-
dio bezel. (9) Remove the upper steering column cover.
(10) Remove the four screws attaching cluster
housing to the base panel (Fig. 15). (11) Pull cluster rearward, reach behind cluster
and disconnect the two wiring harnesses. (12) Remove cluster assembly. INSTALLATION
(1) Connect wiring harnesses.
(2) Install cluster assembly while routing trans-
mission range indicator guide tube through access
hole in base panel (Fig. 10 through 14). Release
guide tube from behind fuse block. (3) Insert flange of column insert into column,
squeeze legs together with tabs under column jacket
and engage lock bar to secure insert (Fig. 13). (4) Hook cable eyelet to steering column actuator
check pointer, should indicate neutral. Do not kink
Fig. 10 Transmission Range Indicator
Fig. 11 Transmission Range Indicator Step 1
Fig. 12 Transmission Range Indicator Step 2
Fig. 13 Transmission Range Indicator Step 3
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or bind the transmission range indicator guide tube
and position guide tube in original location.(5) Adjust with tool if necessary to center pointer
on N (Neutral) and check in other gears (Fig. 14). (6) Install upper and lower steering column cover.
(7) Install the rear window defogger bezel and ra-
dio bezel. (8) Install cluster bezel.
(9) Reconnect battery.
REMOVALÐCLUSTER WITHOUT TRANSMISSION RANGE
INDICATOR FROM STEERING COLUMN
(1) Remove cluster bezel (Fig. 10).
(2) Remove four screws attaching cluster to base
panel. (3) Pull cluster rearward carefully, reach behind
and disconnect the two harness connectors. (4) Carefully rotate cluster and remove the two
transmission range indicator screws. (5) Remove cluster assembly.
(6) For installation reverse above procedures. (a) Do not kink guide tube when installing clus-
ter. (b) Replace guide tube behind fuse block.
GAUGES
It is not necessary to remove instrument cluster
from vehicle for gauge replacement. When removing
gauge assemblies from cluster, gauge must be pulled
straight out, not twisted, or damage to gauge pins
may result.
MULTIPLE GAUGE MALFUNCTION
If all the instrument cluster gauges appear to be
malfunctioning, remove the cluster assembly.
² Check for good pin contact
² Check for ignition voltage between the IGN cavity
D and ground.
² If there is ignition voltage
² Check for continuity between the wire harness
ground cavity G and ground.
² If there is continuity, replace the print circuit
board (Fig. 16).
GAUGE INOPERATIVE (FIG. 17 THROUGH 20)
(1) Remove gauge in question.
(2) With the ignition key ON, check for ignition
voltage at ignition pin of gauge. Check for ground at
ground pin of gauge. Refer to the individual gauge
circuit test for proper pin. (a) If no voltage or ground at gauge pins. Check
cavity D red cluster connector for ignition voltage
or cavity G for ground. (b) If no voltage or ground, repair as necessary.
Refer to 8W, Wiring Diagrams.
Fig. 15 Cluster With Mask and Lens Removed
Fig. 14 Transmission Range Indicator Step 4
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(c) If there is voltage or ground, check cluster for
distorted terminals. If terminals are OK, replace
printed circuit board.
(3) When testing temperature and oil pressure
gauges allow the engine to run until the vehicle
reaches a normal operating temperature. Turn igni-
tion OFF, and remove gauge from cluster. (a) Testing oil pressure gauge, engine needs to
be running. (b) Measure and record the resistance between
sending unit pin and ground pin of the gauge in
question. Refer to Gauge Calibration. (c) When checking temperature and oil pressure
gauges, it is important to have the same engine
temperature and speed when noting gauge position.
The time between gauge reading and measuring
should be kept to a minimum. (d) If resistance and gauge position are not sim-
ilar, replace gauge. (e) If OK, test resistance from the sending unit
to the cluster connector. (f) If resistance reading is different, check
printed circuit board for contact to cluster. (g) If OK and contacts are not distorted, replace
printed circuit board. (h) If everything checks out OK, refer to Sending
Unit Test.
(4) If fuel gauge meets specifications check fuel
tank and original fuel tank sending unit as follow: (a) Carefully remove fuel tank sending unit from
tank.
Fig. 16 Printed Circuit Board
Fig. 17 Fuel Gauge Pins
Fig. 18 Voltmeter Pins
Fig. 19 Temperature Gauge Pins
Fig. 20 Oil Pressure Gauge Pins
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(b) Refer to sending unit removal Group 14, Fuel.
(c) Connect sending unit wire and jumper wire
as described in the test procedure.
(5) If fuel gauge now checks within specifications,
original sending unit is electrically okay, check fol-
lowing as a possible cause: (a) Ground wire from sending unit to left side
cowl for continuity. (b) Sending unit deformed. Make sure sending
unit float arm moves freely and pick up tube is not
bent upwards creating an interference with bottom
of tank and inspect float. (c) Sending unit improperly installed. Install
properly. (d) Mounting flange on fuel tank for sending
unit deformed. Feel for interference fit of sending
unit to bottom of tank. It is permissible to bend
pick up tube down a little near mounting flange to
gain interference fit. (e) Fuel tank bottom deformed, causing improper
positioning of sending unit pick up tube. Replace or
repair tank and recheck sending unit.
GAUGE CALIBRATION
(1) Remove the gauge.
(2) Check for ignition voltage and ground to the
gauge. (3) With the ignition key in the OFF position, re-
place gauge. Turn the ignition key to the ON posi-
tion. To test oil pressure gauge engine must be
running. When testing oil or temperature gauge the
engine should be at normal operating temperature.
Record the gauge position. (4) Remove gauge and record the resistance be-
tween the sending unit pin and the gauge ground
pin. When checking gauges, it is important to have
the same engine temperature and speed when noting
gauge position. The time between gauge reading and
measuring should be kept to a minimum. (5) The resistance Chart (Fig. 21), is general
guidelines for checking the gauge position against
the sending unit resistance. Because of only a few specific points of gauge posi-
tion versus sending unit resistance, a good estimate
is need when the resistance falls between gradua-
tions. Even when the resistance corresponds to grad-
uations, the gauge has a tolerance of 64 ohms.
Volt gauge: The calibration dot on the volt gauge
corresponds to 13 volts between the gauge ignition
and ground pins. If voltage varies from this, estimate
proper gauge position with input voltage.
VOLTMETER REPLACEMENT
(1) Remove cluster bezels and mask (Fig. 22).
(2) Remove screws attaching gauge assembly to
cluster. (3) Pull rearward to disengage gauge from gauge
pins. (4) For installation reverse above procedures.
OIL PRESSURE GAUGE REPLACEMENT
(1) Remove cluster bezels and mask/lens (Fig. 22).
(2) Remove screws attaching gauge assembly to
cluster.
(3) Pull rearward to disengaged gauge from gauge
pins.
(4) For installation reverse above procedures.
FUEL AND TEMPERATURE GAUGE ASSEMBLY REPLACEMENT
(1) Remove cluster bezel and mask/lens (Fig. 22).
(2) Remove oil pressure gauge.
(3) Remove screws attaching gauge assembly to
cluster.
(4) Pull rearward to disengage gauge from gauge
pins.
(5) For installation reverse above procedures.
SPEEDOMETER SYSTEM
AC body vehicles are equipped with electronically
driven speedometer and odometer assemblies. The unit
has the same appearance as a conventional speedometer
but it eliminates the cable-driven mechanical system. A
signal is sent from a transmission-mounted vehicle
speed sensor to the speedometer circuitry through the
wiring harness. By eliminating the speedometer cable,
instrument cluster service and removal is improved. Re-
fer to Fig. 23 Speedometer Diagnosis Chart. When the speedometer is out of calibration. The elec-
tronic automatic transaxle vehicle speed sensor output
must be calibrated to reflect the different combinations
of equipment. The procedure is called Pinion Factor, re-
fer to Group 21, Transaxle for the procedure.
Fig. 21 Gauge Resistance
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SPEEDOMETER ODOMETER ASSEMBLY REPLACEMENT
(1) Remove cluster bezel and mask/lens.
(2) Remove volt gauge.
(3) Remove screws attaching gauge assembly to
cluster. (4) Pull speedometer rearward to disengage from
gauge pins.
(5) For installation: Position speedometer on gauge
pins and push firmly until seated and reverse above
procedures.
SPEEDOMETER CIRCUIT TESTING
(1) Using the DRB II, check vehicle speed sensor
for fault code and for proper speed indication. Refer
to Powertrain Diagnostics Procedure Manual, Speed
Control System Test. (2) Remove speedometer from cluster.
(3) With ignition on check for battery voltage
across ignition and ground pins (Fig. 24). (4) Check for continuity from vehicle speed sensor
signal pin to connector at speed sensor.
VEHICLE SPEED SENSOR REPLACEMENT
(1) Remove harness connector from sensor and
make sure the weather seal is on harness connector
(Figs. 25 and 26). (2) Remove sensor retaining bolt.
(3) Pull sensor and pinion gear assembly out of
transaxle. If necessary, carefully pry loose with a flat
blade screwdriver. (4) Remove pinion gear from sensor.
Fig. 22 Cluster with Mask and Lens Removed
Fig. 23 Speedometer Diagnosis
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(5) For installation reverse above procedures. Seat
sensor assembly by hand to insure proper gear en-
gagement. Tighten retaining bolt to 7 N Im (60 in.
lbs.) torque.
ELECTRONIC AUTOMATIC TRANSAXLE VEHICLE SPEED SENSOR REPLACEMENT
The output vehicle speed sensor is located to the
left of the manual shift lever. (1) Raise and support vehicle on safety stands.
(2) Remove vehicle speed sensor (Fig. 27).
(3) For installation, reverse above procedures.
VEHICLE SPEED SENSOR TEST
For testing of the vehicle speed and related compo-
nents, refer to the Powertrain Diagnostics Test Pro-
cedure Manual.
PRINTED CIRCUIT BOARD REPLACEMENT
(1) Remove cluster assembly, refer to Cluster As-
sembly Replacement. (2) Twist out all lamp sockets.
(3) Remove screws securing printed circuit board
to cluster housing (Fig. 11). (4) Pull printed circuit board straight out and
avoid bending the board. (5) For installation reverse above procedures. Be
sure that all gauge pins are carefully aligned.
CLUSTER LAMPS REPLACEMENT
All cluster lamps are one-piece lamp and socket as-
semblies. Can be replaced by removing cluster as-
sembly from instrument panel. Replace appropriate
lamp shown in rear view of cluster (Fig. 28).
Fig. 24 Speedometer Pins
Fig. 25 Vehicle Speed Sensor and Connector
Fig. 26 Vehicle Speed Sensor and Speedometer Pinion
Fig. 27 Vehicle Speed Sensor Removal
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Fig. 28 Instrument Cluster Illumination Lamp
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