GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 1999 🢒 Firebird 🢒 Body and Accessories 🢒 Instrument Panel, Gauges, and Console 🢒 REDUCED ENG POWER Warning Not Operating Properly

Step

Action

Value(s)

Yes

No

1

Is the reduced engine power indicator inoperative?

--

Go to Step 3

Go to Step 2

2

Is the reduced engine power indicator on at all times?

--

Go to Step 4

Got to Instrument Cluster System Check

3
  1. Connect a scan tool to the vehicle data link connector (DLC).
  2. Enter the instrument cluster WOW mode.
  3. Command the instrument cluster indicators on.

Does the reduced engine power indicator turn on?

--

Go to Powertrain On Board Diagnostic (OBD) System Check

Go to Step 5

4
  1. Connect a scan tool to the vehicle data link connector (DLC).
  2. Enter the instrument cluster WOW mode.
  3. Command the instrument cluster indicators off.

Does the reduced engine power indicator turn off?

--

Go to Powertrain On Board Diagnostic (OBD) System Check

Go to Step 5

5

Replace the instrument cluster. Refer to Instrument Cluster Replacement .

Is the repair complete?

--

System OK

--