GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

DEFINITION: Charge Indicator Inoperative

1

  1. Disconnect the generator connector.
  2. Attach a fused jumper between the generator connector terminal B (K68) or L (KG9) and ground.
  3. Set the ignition switch to RUN.

Is the CHARGE indicator on?

--

Go to Step 8

Go to Step 2

2

  1. Disconnect the PCM connector C2.
  2. Attach a fused jumper between the PCM connector C2 terminal 16 and ground.

Is the CHARGE indicator on?

--

Go to Step 11

Go to Step 3

3

Check for a poor connection or an open in circuit 225.

Is there a poor connection or an open in circuit 225?

--

Go to Step 4

Go to Step 5

4

Repair the poor connection or the open in circuit 225.

Has the repair been made and the system rechecked?

--

System OK

--

5

Check for a poor connection or an open in circuit 39.

Is there a poor connection or an open in circuit 39?

--

Go to Step 6

Go to Step 7

6

Repair the poor connection or open in circuit 39.

Has the repair been made and the system rechecked?

--

System OK

--

7

Check the CHARGE indicator bulb.

Is the CHARGE indicator bulb OK?

--

Go to Step 15

Go to Step 14

8

Check for a poor connection at the generator terminal L (harness connector terminal B [K68] or [KG9]).

Is there a poor connection at the generator terminal L (harness connector terminal B [K68] or [KG9])?

--

Go to Step 9

Go to Step 10

9

Repair the poor connection at the generator terminal L (harness connector terminal B [K68] or L [K69]).

Has the repair been made and the system rechecked?

--

System OK

--

10

Replace the generator.

Has the repair been made and the system rechecked?

--

System OK

--

11

Check circuit 225 for a poor connection or open.

Is there a poor connection or open?

--

Go to Step 12

Go to Step 13

12

Repair the poor connection or open in circuit 225.

Has the repair been made and the system rechecked?

--

System OK

--

13

Service the PCM. Refer to Engine Controls.

Has the repair been made and the system rechecked?

--

System OK

--

14

Replace the CHARGE indicator bulb.

Has the repair been made and the system rechecked?

--

System OK

--

15

Service instrument cluster. Refer to Instrument Panel, Gages and Console 8C.

Has the repair been made and the system rechecked?

--

System OK

--