Checking Program QOS - III
| Test | Test Equipment | Test | Notes | Nominal | ||
|---|---|---|---|---|---|---|
| Step | Multimeter | |||||
| MKM - 587 - A | ||||||
| of | ||||||
| between | Value | |||||
| 01 | Voltmeter range 20V, DC | Voltage supply | K76, ter. 1 | K76, ter. 10 | · Disconnect wiring harness plug from control unit QOS - III K76 |
· Ignition "ON"
| · Measurement at wiring harness plug | > 11.5 V | |
|---|---|---|
| Troubleshooting: | Nominal Value: | Cause of Fault: |
· Measure voltage with multimeter
from: Control unit QOS - III K76, wiring harness plug ter. 1
| to: Ground | > 11.5 V | · Fuse F8 (C8 for Monterey) defective |
or
· Line interrupted
from: Fuse F8 (C8 for Monterey)
to: Control unit QOS - III K76, wiring harness plug ter. 1
· Ignition "OFF"
· Measure resistance with multimeter
from: Control unit QOS - III K76, wiring harness plug ter. 10
| to: Ground | approx. 0 W | · Line interrupted |
from: Control unit QOS - III K76, wiring harness plug ter. 10
| to: Ground |