GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1996 🢒 Astro - 2WD 🢒 Engine 🢒 Engine Electrical 🢒 Volts Indicator Lamp Never On

Step

Action

Value(s)

Yes

No

DEFINITION: Battery indicator does not light with the ignition switch in RUN position and engine stopped.

1
  1. Disconnect the generator connector.
  2. Turn the ignition to RUN position.
  3. Connect a fused jumper wire from BRN (25) wire at the generator to ground.

Does the fuse blow?

--

Go to Step 2

Go to Step 3

2
  1. Locate and repair a short to battery voltage in BRN (25) wire from the generator to the bulb in the I/P cluster.
  2. Check that BRN (25) wire is connected to cavity B of the generator connector.
  3. If OK, replace generator. Refer to Generator Replacement.

Is the repair complete?

--

System OK

--

3

Does the battery indicator light?

--

Go to Step 4

Go to Step 7

4

Connect an ammeter in series from BRN (25) wire at the generator connector to same generator terminal.

Is the ammeter reading more than the specified value?

0.25 A

Go to Step 5

Go to Step 6

5
  1. Locate and repair short to BRN (25) wire by another battery voltage source or low circuit resistance.
  2. If OK, replace generator. Refer to Generator Replacement.

Is the repair complete?

--

System OK

--

6
  1. Check that BRN (25) wire is connected to cavity B of the generator connector.
  2. If OK, replace generator. Refer to Generator Replacement.

Is the repair complete?

--

System OK

--

7
  1. Disconnect the I/P cluster.
  2. Using an ohmmeter, test BRN (25) wire for resistance between the generator and I/P cluster connector.

Is the ohmmeter reading more than the specified value?

25 ohms

Go to Step 8

Go to Step 9

8

Locate and repair an open in BRN (25) wire from the generator to the I/P cluster.

Is the repair complete?

--

System OK

--

9

Remove and inspect the battery indicator lamp.

Is the indicator lamp open?

--

Go to Step 10

Go to Step 11

10

Replace the battery indicator lamp.

Is the replacement complete?

--

System OK

--

11
  1. Turn the ignition switch to the RUN position.
  2. Connect a voltmeter between the I/P cluster connector PNK (39) wire cavity B17 and Ground.

Does the voltmeter show battery voltage?

--

Go to Step 12

Go to Step 13

12

Repair or replace the I/P cluster.

Is the repair complete?

System OK

--

13

Locate and repair an open PNK (39) wire from I/P fuse block to the I/P cluster connector.

Is the repair complete?

System OK

--