Checking Program - Cruise Control Monterey
| Test | Test Equipment | Test | Notes | Nominal | |
|---|---|---|---|---|---|
| Step | Multimeter | ||||
| MKM-587-A | of | ||||
| between | |||||
| Value: | |||||
| 07 | Pump and actuator Y8 | - | · Ignition "OFF" |
· Bridge K14 / XB9 ter. 7 with K14 / XB9 ter. 5
· Bridge K14 / XB9 ter. 10 with K14 / XB9 ter. 9
· Ignition "ON"
· Cruise control main switch S172 "ON"
· Cruise control main switch S172 "OFF"
Important: Pump should not run longer
than 10 sec. to prevent overheating
Pump must be audible
| Pump stops | |
|---|---|
| · Maintain bridges |
· Bridge K14 / XB9 ter. 3 with K14 / XB9 ter. 9
· Cruise control main switch S172 "ON"
| · Cruise control main switch S172 "OFF" | Throttle valve opens |
Throttle valve closes quickly
| · Maintain bridges |
· Cruise control main switch S172 "ON"
· When the throttle valve is opened remove bridge K14 / XB9 ter. 3 with K14 / XB9 ter. 9
| · Cruise control main switch S172 "OFF" | Throttle valve opens |
Throttle valve remains opened
Throttle valve closes quickly
| · Maintain bridges |
· Bridge K14 / XB9 ter. 3 with K14 / XB9 ter. 9
· Cruise control main switch S172 "ON"
· When the throttle valve is opened remove bridge K14 / XB9 ter. 10 with K14 / XB9 ter. 9
| Throttle valve opens | ||||
|---|---|---|---|---|
| Throttle valve remains opened | ||||
| · With throttle valve opened remove bridge K14 / XB9 ter. 3 with K14 / XB9 ter. 9 | Throttle valve closes slowly | |||
| Troubleshooting | Nominal Value | Cause of Fault |
· Remove bridges from control unit K14, wiring harness plug XB9
· Measure resistance with multimeter
from: Control unit K14, wiring harness plug XB9 ter. 7
| to: Pump and actuator Y8, wiring harness plug XC37 ter. 2 | ||
|---|---|---|
| approx. 0 W | · Line interrupted or short circuit to voltage |
from: Wiring harness plug XB9 ter. 7
| to: Wiring harness plug XC37 ter. 2 |
· Measure resistance with multimeter
from: Control unit K14, wiring harness plug XB9 ter. 10
| to: Pump and actuator Y8, wiring harness plug XC37 ter. 3 | ||
|---|---|---|
| approx. 0 W | · Line interrupted or short circuit to voltage |
from: Wiring harness plug XB9 ter. 10
to: Wiring harness plug XC37 ter. 3
· Measure resistance with multimeter
from: Control unit K14, wiring harness plug XB9 ter. 3
| to: Pump and actuator Y8, wiring harness plug XC37 ter. 1 | approx. 0 W | · Line interrupted or short circuit to voltage |
from: Wiring harness plug XB9 ter. 10
to: Wiring harness plug XC37 ter. 3
· Measure resistance with multimeter
| from: Pump and actuator Y8, wiring harness plug XC37 ter. 1, 2 and 3 | ||
|---|---|---|
| to: Ground | > 20 MW | · Short circuit to ground |
from: Wiring harness plug XB9 ter. 3
to: Wiring harness plug XC37 ter. 1, 2 and 3
· Measure resistance with multimeter
| from: Pump and actuator Y8, wiring harness plug XC37 ter. 4 | ||
|---|---|---|
| to: Ground | approx. 0 W | · Line interrupted |
from: Wiring harness plug XC37 ter. 4
to: Ground
| If nominal values are attained: |
· Pump and actuator Y8 defective
or
| · Cruise control unit K14 defective |