Stop Lamps Inoperative Hatchback
Step | Action | Values | Yes | No |
|---|---|---|---|---|
|
Notice: Do not insert test equipment probes (DVOM etc.) into any connector or fuse block terminal. The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor connection, which will result in a system failure. Always use the J-35616 GM-Approved Terminal Test Kit in order to front probe terminals. Do not use paper clips or other substitutes to probe terminals. When using the J-35616 GM-Approved Terminal Test Kit, ensure the terminal test adapter choice is the correct size for the connector terminal. Do not visually choose the terminal test adapter because some connector terminal cavities may appear larger than the actual terminal in the cavity. Using a larger terminal test adapter will damage the terminal. Refer to the J-35616 GM-Approved Terminal Test Kit label on the inside of the J-35616 GM-Approved Terminal Test Kit for the correct adapter along with the connector end view for terminal size. | ||||
1 | Test fuse F13. Is fuse F13 open? | -- | Go to Step 2 | Go to Step 3 |
2 |
Is the repair complete? | -- | System OK | -- |
3 | Use a voltmeter to measure the voltage at fuse F13. Is the voltage at fuse F13 equal to the specified value? | 11-14 V | Go to Step 5 | Go to Step 4 |
4 | Repair the power supply circuit for fuse F13. Is the repair complete? | -- | System OK | -- |
5 |
Does the test lamp illuminate? | -- | Go to Step 6 | Go to Step 8 |
6 | Connect an ohmmeter between the ground and the stop lamp ground terminal. Does the ohmmeter indicate continuity? | -- | Go to Step 8 | Go to Step 7 |
7 | Repair the ground circuit. Is the repair complete? | -- | System OK | -- |
8 |
Does the ohmmeter indicate continuity? | -- | Go to Step 10 | Go to Step 9 |
9 | Replace the stop lamp switch. Is the repair complete? | -- | System OK | -- |
10 |
Does the voltmeter show the specified value? | 11-14 V | Go to Step 12 | Go to Step 11 |
11 | Repair the open circuit between the fuse F13 and the brake switch. Is the repair complete? | -- | System OK | -- |
12 | Repair the open circuit between the brake switch and the stop lamps. Is the repair complete? | -- | System OK | -- |
Stop Lamps Inoperative Notchback
Step | Action | Values | Yes | No |
|---|---|---|---|---|
|
Important: When probing a bulb socket with a voltmeter or a test lamp, do not contact the side of the socket (ground) when you are testing the positive contact at the bottom of the socket. If the voltage and the ground are both available at the bulb socket, contacting both at the same time with a test probe will cause a blown fuse. | ||||
1 | Check fuse F7. Is fuse F7 blown? | -- | Go to Step 2 | Go to Step 3 |
2 |
Is the repair complete? | -- | System OK | -- |
3 | Use a voltmeter to check the voltage at fuse F7. Is the voltage at F7 equal to the specified value? | 11-14V | Go to Step 5 | Go to Step 4 |
4 | Repair the power supply circuit for fuse F7. Is the repair complete? | -- | System OK | -- |
5 |
Does the test lamp illuminate? | -- | Go to Step 6 | Go to Step 8 |
6 | Connect an ohmmeter between ground and the stop lamp ground terminal. Is the resistance within the specified value? | <1.0 ohms | Go to Step 8 | Go to Step 7 |
7 | Repair the ground circuit. Is the repair complete? | -- | System OK | -- |
8 |
Is the resistance within the specified value? | <1.0 ohms | Go to Step 10 | Go to Step 9 |
9 | Replace the stop lamp switch. Is the repair complete? | -- | System OK | -- |
10 |
Does the voltmeter show the specified value? | 11-14V | Go to Step 12 | Go to Step 11 |
11 | Repair the open circuit between the fuse F7 and the brake switch. Is the repair complete? | -- | System OK | -- |
12 | Repair the open circuit between the brake switch and the stop lamps. Is the repair complete? | -- | System OK | -- |
