Step
| Action
| Value(s)
| Yes
| No
|
|
Important: In order to avoid misdiagnosis, check for proper engine oil pressure
before performing this diagnosis.
|
1
| Does the oil pressure
gauge always read low pressure?
| --
| Go to
Engine Oil Pressure Gauge Always Low
|
Go to Step
2
|
2
|
- Disconnect the oil pressure sensor.
- Using IP tester J33431, connect one red lead to the sensor connector
terminal A and connect the other red lead to ground.
- Turn the ignition switch to the RUN position, with the engine
off.
- While observing the oil pressure gauge, set the resistance dial
on the tester to 0ohms, 500ohms, and 1,000ohms.
Does the oil pressure gauge move from 0 psi to 30 psi and then to 80
psi?
| --
|
Go to Step 3
|
Go to Step 4
|
3
|
- Check for a poor connection at the oil pressure sensor.
- If the connections are OK, replace the oil pressure sensor.
Is the repair complete?
| --
| System OK
| --
|
4
|
- Check for an open or poor connection in circuit 31 between the
oil pressure sensor and the instrument cluster.
- If OK, replace the instrument cluster. Refer to
Instrument Cluster Replacement
.
Is the repair complete?
| --
| System OK
| --
|
