| No. | TECH 1 Display | Conditions for Checking | Nominal Value | Trouble Codes | Terminal |
|---|---|---|---|---|---|
| 07 | BRAKE SWITCH | Ignition ON |
Brake not actuated
| INACTIVE 0 V | 37 | 2 | |
|---|---|---|---|
| Brake actuated | ACTIVE 12 V | ||
| Notes for Trouble - shooting: | Nominal Value: | Cause of Fault: |
· Ignition ON
Actuate brake
| Left and right brake lamps illuminate | · Fuse F 2 defective |
· Lead interruption between fuse F 2 and brake lamp switch S 8
· Brake lamp switch S 8 defective
· Lead interruption between brake lamp switch S 8 and plug connection X 1 / Ter. 1
· Lead interruption between plug connection X 1 / Ter. 1 and brake lamps
· Ignition OFF
· Disconnect plug X 25P from control unit U 4.8
· Connect voltmeter between X 2SP / Ter. 22 and ground
· Ignition ON
· Actuate brake
| approx. 12 V |
|---|
| · Lead interruption between plug connection X 1 / Ter. 1 and control unit U 4.8 / X 25P / Ter. 2 |
· Control unit U 4.8 defective