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For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1997 🢒 Corvette 🢒 Body and Accessories 🢒 Lighting Systems 🢒 All Stop Lamps Inoperative (Domestic and Canadian)

All Stoplamps are Inoperative (Domestic and Canada)

Step

Action

Value(s)

Yes

No

1

Were you sent here from the Exterior Lights Diagnostic System Check?

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Go to Step 2

Go to Exterior Lights Diagnostic System Check

2

Check the 20 amp STP/HAZ MiniFuse® #8 for an open circuit.

Is the fuse open?

--

Go to Step 6

Go to Step 3

3
  1. Disconnect the stoplamp switch connector C2.
  2. Connect a DMM between the stoplamp switch connector C2 terminal A and ground.
  3. Measure the voltage at the stoplamp switch connector.

Is the voltage within the specified values?

10.0-14.0V

Go to Step 5

Go to Step 4

4

Repair an open in CKT 140 between the instrument panel electrical center connector C1 terminal B2 and the stoplamp switch connector C2 terminal A.

Is the repair complete?

--

Go to Exterior Lights Diagnostic System Check

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5
  1. Remove the LR tail/stop lamp bulb from its socket.
  2. Connect a DMM from the ground terminal within the bulb socket and a good ground.
  3. Check for continuity to ground at the ground terminal within the bulb socket.

Is continuity to ground present?

--

Go to Step 13

Go to Step 14

6

Replace the 20 amp STP/HAZ MiniFuse® #8.

Does the fuse short open when replace?

--

Go to Step 7

Go to Step 8

7

Repair a short to ground in CKT 140 between the instrument panel electrical center connector C1 terminal B2 and the stoplamp switch connector C2 terminal A.

Is the repair complete?

--

Go to Exterior Lights Diagnostic System Check

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8
  1. Disconnect the underhood electrical center connector C2 and connector C231.
  2. Connect a DMM between the stoplamp switch connector C2 terminal B and ground.
  3. Check for continuity to ground at the stoplamp switch connector terminal B.

Is continuity to ground present?

--

Go to Step 9

Go to Step 10

9

Repair a short to ground in CKT 17 or CKT 20 between the stoplamp switch connector C2 terminal A and the underhood electrical center connector C2 terminal F1 or the hazard warning switch connector terminal K.

Is the repair complete?

--

Go to Exterior Lights Diagnostic System Check

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10
  1. Disconnect the underhood electrical center connector C1.
  2. Connect a DMM between the underhood electrical center connector C1 terminal F3 and ground.
  3. Check for continuity to ground at the underhood electrical center connector C1 terminal F3.

Is continuity to ground present?

--

Go to Step 11

Go to Step 12

11

Repair a short to ground in CKT 20 between the throttle actuator control module connector C2 terminal 6 and the underhood electrical center connector C1 terminal F3.

Is the repair complete?

--

Go to Exterior Lights Diagnostic System Check

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12

Repair a short to ground in CKT 20/CKT 820 between the underhood electrical center connector C3 terminal A1 and the electronic brake traction control module or the CHMSL.

Is the repair complete?

--

Go to Exterior Lights Diagnostic System Check

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13
  1. Check for a poor connection or a misalignment of the stoplamp switch.
  2. If OK, replace the stoplamp switch.

Is the repair complete?

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Go to Exterior Lights Diagnostic System Check

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14

Repair an open in CKT 150 between splice pack 400 and G401.

Is the repair complete?

--

Go to Exterior Lights Diagnostic System Check

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