Checking Program - Electrical Circuit EGR
| Test | Test Equipment | Test | Notes | Nominal | ||
|---|---|---|---|---|---|---|
| Step | Multimeter | |||||
| MKM - 587 - A | of | between | Value | |||
| 04 | Ohmmeter range 200 kW | Throttle position sensor P73 | K161, ter. 2 | K161, ter. 12 | · Ignition "ON" | |
| · Measurements at wiring harness plug | ± 4 kW | |||||
| K161, ter. 2 | K161, ter. 1 | · With accelerator pedal released | ||||
| · With accelerator pedal fully depressed | ± 4 kW± 1 kW | |||||
| Ohmmeter range 20 MW | K161, ter. 2 | Ground | · Measurements at wiring harness plug | > 20 MW | ||
| Troubleshooting: | Nominal Value: | Cause of Fault: |
· Ignition "OFF"
· Disconnect wiring harness plug from throttle position sensor P73
· Measure resistance with multimeter
from: Control unit QOS & EGR K161, wiring harness plug ter. 2
| to: Throttle position sensor P73, wiring harness plug ter. 1 | ||
|---|---|---|
| · Ignition "ON" | approx. 0 W | · Line interrupted or short circuit to voltage |
from: Control unit QOS & EGR K161, wiring harness plug ter. 2
to: Throttle position sensor P73, wiring harness plug ter. 1
· Measure resistance with multimeter
from: Control unit QOS & EGR K161, wiring harness plug ter. 2
| to: Ground | > 20 MW | · Short circuit to ground |
from: Control unit QOS & EGR K161, wiring harness plug ter. 2
to: Throttle position sensor P73, wiring harness plug ter. 1
· Measure resistance with multimeter
from: Control unit QOS & EGR K161, wiring harness plug ter. 1
| to: Throttle position sensor P73, wiring harness plug ter. 2 | approx. 0 W | · Line interrupted or short circuit to voltage |
from: Control unit QOS & EGR K161, wiring harness plug ter. 1
| to: Throttle position sensor P73, wiring harness plug ter. 2 |
· Measure resistance with multimeter
from: Control unit QOS & EGR K161, wiring harness plug ter. 1
| to: Ground | > 20 MW | · Short circuit to ground |
from: Control unit QOS & EGR K161, wiring harness plug ter. 1
to: Throttle position sensor P73, wiring harness plug ter. 2
· Measure resistance with multimeter
from: Control unit QOS & EGR K161, wiring harness plug ter. 12
| to: Throttle position sensor P73, wiring harness plug ter. 3 | approx. 0 W | · Line interrupted or short circuit to voltage |
from: Control unit QOS & EGR K161, wiring harness plug ter. 12
to: Throttle position sensor P73, wiring harness plug ter. 3
· Measure resistance with multimeter
from: Control unit QOS & EGR K161, wiring harness plug ter. 12
| to: Ground | > 20 MW | · Short circuit to ground |
from: Control unit QOS & EGR K161, wiring harness plug ter. 12
to: Throttle position sensor P73, wiring harness plug ter. 3
| If nominal values are attained: | · Throttle position sensor P73 |