GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Saturn 🢒 2005 🢒 VUE - AWD 🢒 Body 🢒 Instrument Panel, Gages, and Console 🢒 Engine Oil Pressure Indicator Always On

Step

Action

Yes

No

Schematic Reference: Instrument Cluster Schematics

1

Did you perform the Diagnostic System Check - Vehicle?

Go to Step 2

Go to Diagnostic System Check - Vehicle in Vehicle DTC Information

2

Start the engine.

Does the engine oil pressure indicator illuminate after the displays test?

Go to Step 3

Go to Testing for Intermittent Conditions and Poor Connectionsin Wiring Systems

3
  1. Install a scan tool.
  2. With a scan tool, observe the Low Oil Pressure parameter in the Powertrain General Info -- Inputs list.

Does the Low Oil Pressure parameter display No?

Go to Step 10

Go to Step 4

4
  1. Turn OFF the ignition.
  2. Disconnect the engine oil pressure switch.
  3. Start the engine.
  4. With the scan tool, observe the Low Oil Pressure parameter.

Does the Low Oil Pressure parameter display Yes?

Go to Step 6

Go to Step 5

5

Test the signal circuit of the oil pressure switch signal for a short to ground. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 11

Go to Step 7

6

Inspect for poor connections at the harness connector of the engine oil pressure switch. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 11

Go to Step 8

7

Inspect for poor connections at the harness connector of the engine control module (ECM)/powertrain control module (PCM). Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 11

Go to Step 9

8

Replace the engine oil pressure switch. Refer to the following procedures:

    •  Engine Oil Pressure Sensor and/or Switch Replacementin Engine Mechanical - 2.2L
    •  Engine Oil Pressure Sensor and/or Switch Replacement in Engine Mechanical - 3.5L

Did you complete the replacement?

Go to Step 11

--

9

Replace the ECM/PCM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming.

Did you complete the replacement?

Go to Step 11

--

10

Replace the IPC. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming.

Did you complete the replacement?

Go to Step 11

--

11

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2