REMOVALÐCLUSTER WITHOUT PRNDL 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 PRNDL 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 assembly from vehicle for gauge replacement.

When removing gauge assemblies from cluster, gauge must be pulled straight out, not twisted, or damage to gauge pin may result.

MULTIPLE GAUGE MALFUNCTION

If the fuel, voltage and tachometer gauges appear to be malfunctioning, remove the cluster assembly. Check for good pin contact between the wire harness and printed circuit board. If there is good contact, check for ignition voltage at ignition cavity C of the black connector. If there is ignition voltage, check for continuity between the wire harness ground cavity H of the black connector and ground. If there is continuity, replace printed circuit board.

If the temperature, oil pressure and speedometer gauges appear to be malfunctioning remove the cluster assembly. Check for a good contact between the wire harness and the printed circuit board. If there is good contact, check for ignition voltage at cavity J of the red connector. If there is voltage, check for continuity at cavity H of the black connector. If there is continuity, replace the printed circuit board.

If the temperature, fuel, voltage and speedometer gauges appear to be malfunctioning, remove the cluster assembly. Check for good pin contact between the wire harness and the printed circuit board. If there is good contact, check ignition voltage at cavity J of the red connector. If there is voltage, check for continuity at cavity H of the black connector. If there is continuity, replace the printed circuit board.

Fig. 17 Fuel Gauge PinsÐWith Tachometer

Fig. 18 Fuel Gauge PinsÐWithout Tachometer

8E - 8 INSTRUMENT PANEL AND GAUGES

Fig. 20 Voltmeter PinsÐWithout Tachometer

Fig. 21 Temperature Gauge PinsÐWith Tachometer

(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 voltage at pin, replace gauge.

(b)If no voltage or ground at gauge pins, check for ignition voltage and ground at cluster harness connectors.

(c)If no voltage or ground, repair as necessary. Refer to 8W, Wiring Diagrams.

(d)If there is voltage or ground, check cluster for distorted terminals. If terminals are OK, replace printed circuit board.

(3)When testing temperature, allow the engine to run until the vehicle reaches a normal operating temperature. Turn ignition OFF, and remove gauge from cluster.

Ä

Fig. 22 Temperature Gauge PinsÐWithout

Tachometer

Fig. 23 Oil Pressure Gauge PinsÐWith Tachometer

(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)It is important to have the same engine temperature and engine speed when checking temperature and oil pressure gauges position. The time between gauge position reading and sending unit measuring should be kept to a minimum.

(d)If resistance and gauge position are not similar, 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 connector.

(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 does not meet specifications, check following items as possible causes:

(a)Wiring and connections between gauge sending unit and multiple connector behind left cowl kick pad. (Fig. 24).

(3)With the ignition key in the OFF position, replace gauge. Turn the ignition key to the ON position. 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 between 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 Gauge Resistance Chart (Fig. 25), is general guidelines for checking the gauge position against the sending unit resistance.

Fig. 24 Fuel Tank Sending UnitÐTypical

(b)Wiring and connections between multiple connector behind left cowl kick pad and printed circuit board terminals.

(c)Circuit continuity between printed circuit board terminals and gauge terminals.

(d)If these items check okay, fuel gauge is defective and must be replaced.

(5)If fuel gauge meets specifications, check fuel tank and original fuel tank sending unit as follows:

(a)Carefully remove fuel tank sending unit from tank, refer to sending unit removal Group 14, Fuel. Connect sending unit wire and jumper wire as described in the test procedure.

(6)If fuel gauge now checks within specifications, original sending unit is electrically okay, check following as a possible cause:

(a)Check ground wire from sending unit to left side cowl for continuity.

(b)Sending unit deformed. Make sure sending unit float arm moves freely and that 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.

Fig. 25 Gauge Resistance

Because of only a few specific points of gauge position versus sending unit resistance, a good estimate is need when the resistance falls between graduations. Even when the resistance corresponds to graduations, the gauge has a tolerance of 6 4 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.

TACHOMETER REPLACEMENT

(1)Remove cluster, radio and rear window defogger bezels and mask/lens assembly.

(2)Remove screws attaching tachometer to cluster housing.

(3)Pull tachometer rearward to remove.

(4)For installation reverse above procedures.

8E - 10 INSTRUMENT PANEL AND GAUGES

TACHOMETER CIRCUIT TESTING

(1)Remove cluster, radio and rear window defogger bezels and mask/lens assembly.

(2)Check for battery voltage at cavity A of the instrument cluster black connector.

(3)With the ignition in the ON position, check for battery voltage at cavity C of the black connector (Fig. 26).

Fig. 26 Printed Circuit Board 11-Way Connector

(4)Check cavity H of the black connector for continuity to ground.

(5)Check for tachometer signal from the engine controller by connecting an AC DIGITAL VOLTMETER to cavity B of the instrument cluster black connector and ground. A reading of at least 1.0 volt should be present with the engine running (Fig. 27).

(a)If voltage is within specification, go to step 7.

Ä

(b)If voltage is NOT within specification, perform steps 6.

(6)If there is less than 1.0 volt at cavity B, check for continuity between cavity B and pin 43 of the engine controller module connector.

(a)If continuity is OK, between cavity B and pin 43 of the engine controller connector, replace the engine controller.

(b)No continuity, check the connectors for damaged pins or terminal push outs or defective wire.

(7)If all tests performed test good replace the tachometer drive module.

(8)If the tachometer continues to be inoperative, replace the tachometer assembly.

VOLTMETER AND FUEL GAUGE ASSEMBLY REPLACEMENT

(1)Remove cluster, radio and rear window defogger bezels and mask/lens assembly.

(2)Remove tachometer.

(3)Remove screw attaching gauge assembly to cluster.

(4)Pull rearward to remove gauge assembly.

(5)For installation reverse above procedures.

OIL PRESSURE AND TEMPERATURE GAUGE ASSEMBLY REPLACEMENT

(1)Remove cluster, radio and rear window defogger bezels and mask/lens.

(2)Remove speedometer.

(3)Remove screw attaching gauge assembly to cluster.

(4)Pull rearward to remove gauge assembly.

(5)For installation reverse above procedures.