GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1998 🢒 Monte Carlo 🢒 Engine 🢒 Engine Electrical 🢒 Charge Indicator Inoperative

Step

Action

Value(s)

Yes

No

Important: 

   • Battery must be in a charged state to avoid misdiagnosis.
   • Use the J 35616 Connector Test Adapter Kit whenever a diagnostic procedure requires checking or probing a terminal. Using the adapter will ensure that no damage to the terminal will occur, as well as giving and idea of whether contact tension is sufficient. If contact tension seems incorrect, refer to Checking Terminal Contact in General Electrical Diagnosis Procedures for specifics.

1
  1. Disconnect the generator connector.
  2. Attach a fused jumper from the generator connector circuit 225 to ground.
  3. Turn the ignition switch to the RUN position.

Is the charge indicator ON?

--

Go to Step 2

Go to step 5

2

Use a DMM to check for a poor connection at the generator terminal L.

Did you find a poor connection at the generator terminal L?

--

Go to Step 3

Go to Step 4

3

Repair the poor connection at the generator terminal L.

Did you complete the repair and retest the system?

--

System OK

--

4

Replace the generator. Refer to Generator Replacement or Generator Replacement .

Did you complete the repair and retest the system?

--

System OK

--

5
  1. Disconnect the PCM C2 connector.
  2. Attach a fused jumper from the PCM connector circuit 25 to ground.

Is the charge indicator ON?

--

Go to Step 6

Go to Step 9

6

Use a DMM to check for a poor connection or open in circuit 225.

Did you find a poor connection or open in circuit 225?

--

Go to Step 7

Go to Step 8

7

Repair the poor connection or open in circuit 225.

Did you complete the repair and retest the system?

--

System OK

--

8

Service the PCM. Refer to Powertrain Control Module Replacement/Programming for 3100 (VIN M) or Powertrain Control Module Replacement/Programming for 3800 (VIN K).

Did you complete the repair and retest the system?

--

System OK

--

9

Use a DMM to check the charge indicator bulb, circuit 39 and circuit 25 for a poor connection or open.

Did you find a poor connection or open in the charge indicator bulb, circuit 39 or circuit 25?

--

Go to Step 10

Go to Step 11

10

Repair the poor connection or open in the charge indicator bulb, circuit 39 or circuit 25.

Did you complete the repair and retest the system?

--

System OK

--

11

Replace the instrument cluster. Refer to Instrument Cluster Replacement in Instrument Panel, Gauges and Console.

Did you complete the repair and retest the system?

--

System OK

--