Circuit Description
The Low Air Indicator illuminates when ground is applied to the Low Air Indicator Control Circuit.
Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Brake Warning System Schematics | |||
1 | Did you review the Brake Warning System Description and Operation and perform the necessary inspections? | Go to Step 2 | |
2 | Verify a fault is present. Does the system operate normally? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 | Is the Low Air Indicator and the Brake Warning Alarm inoperative? | Go to Step 4 | |
4 |
Does the test lamp light? | Go to Step 6 | Go to Step 5 |
5 | Connect a test lamp from the Battery Positive Voltage Circuit to a good ground . Does the test lamp light? | Go to Step 8 | Go to Step 9 |
6 | Test the Low Air Indicator Control Circuit for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 10 | Go to Step 7 |
7 | Replace the Multifunction Control Module? Refer to Multifunction Alarm Module Replacement in Instrument Panel, Gages, and Console Did you complete the replacement? | Go to Step 10 | -- |
8 | Repair the open in the ground circuit. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 10 | -- |
9 | Repair the open in the Battery Positive Voltage Circuit. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 10 | -- |
10 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |
