Diamante Sedan V6-2972cc 3.0L DOHC (1993)
Standard Value
3.5 - 6.5 K ohm
3.
Connect an analog type ohmmeter between terminals 1 and 2.
Terminal 1: Sensor ground
Terminal 2: Sensor output
4.
Slowly open the throttle valve from the idle position to the fully open position and check that the resistance values change smoothly with the
opening of the throttle valve.
Standard Value
0.5 K ohm increasing to 3.5 - 6.5 K ohm
5.
If the resistance is out of specification, or if the change is not smooth, replace the throttle position sensor.
HARNESS TEST
1.
Disconnect the TPS connector and turn the key to the ON position.
2.
Using a voltmeter, measure the supply voltage between the TPS harness connector terminal 1 and ground.
Voltage:
4.8 - 5.2 Volts.
3.
Check for continuity between the TPS harness connector terminal 4 and ground.
Continuity:
Should exist.
4.
Turn the key to the OFF position. Disconnect the negative battery terminal and the ECM connector. Check for continuity between the ECM
harness connector terminal 64 and ground. Check for continuity between the TPS harness connector terminal 2 and ground.
Continuity:
Should not exist.
5.
Check for continuity between the ECM harness connector terminal 64 and the TPS harness connector terminal 2.
Continuity:
Should exist.
If any of the previous tests produce unsatisfactory results, the harness will need to be repaired or replaced. Once repairs have been completed,
clear the trouble codes and road test the vehicle to confirm that the repair has corrected the problem and the code doesn't return.
If the same trouble code reoccurs, it is possible that there is an intermittent failure of the component or the ECM. Check for looseness at all
harness junctions and test for an intermittent failure.
