GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

  1. Check the actual engine oil pressure with the engine running.
  2. Compare this value to the indicated value.
  3. The oil pressure gauge should indicate approximately the same as the actual pressure, within the specified range.

Does the oil pressure gauge indicate a reading close to the specified value?

69 kPa (10 psi)

Go to Step 2

Go to Step 3

2

Inspect the engine for operating problems.

Is the engine operating properly?

--

System OK

--

3

  1. Disconnect the connector at the engine oil pressure indicator sender.
  2. Connect a fused jumper wire between the oil pressure indicator sender connector terminal A for CKT 7 (BRN/WHT) and ground.
  3. The oil pressure gauge should indicate 0 kPa (0 psi) or less.

Does the oil pressure indicate low pressure?

--

Go to Step 4

Go to Step 5

4

Replace the engine oil pressure sender.

Is the repair complete?

--

System OK

--

5

  1. Disconnect the 17 way IP harness connector at the instrument cluster.
  2. Connect a J 39200 from the instrument cluster connector C11 to the engine oil pressure indicator sender terminal A.

Does the DMM indicate continuity?

--

Go to Step 6

Go to Step 7

6

Replace the instrument cluster. Refer to Instrument Cluster Replacement .

Is the repair complete?

--

System OK

--

7

Locate and repair the open in one or more of the following circuits between the instrument cluster and the engine oil pressure indicator sender:

  1. CKT 7 (BRN/WHT)
  2. CKT 383 (BRN/WHT)
  3. CKT 211 (BRN)
  4. CKT 331 (TAN/WHT)

Is the repair complete?

--

System OK

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