).| Use special tool power plant ECU
check harness (MB992291), check the engine-ECU terminal
voltage. |
| 1.Remove the engine-ECU
(Refer to GROUP 13C - Engine-ECU ). |
 |
2.Connect special tool
MB992291 between the engine-ECU and the body-side harness
connector. 3.Measure the voltages between the check connector terminals of special tool MB992291 and earth terminals No.116, 117 or 145. |
| Terminal
No. |
Terminal
code |
Check
item |
Check
condition |
Normal
condition |
|
| 110 |
BRK |
Stop lamp switch
(brake switch) |
Ignition switch:
"ON" |
Depress the brake
pedal. |
System
voltage |
| Release the brake
pedal. |
1V or less |
||||
| 139 |
CNTS |
Cruise control
switch |
Ignition switch:
"ON" |
All switches:
Released |
4.7 - 5.0 V
|
| Cruise control
ON/OFF switch: Pressed |
0.9 - 1.7 V
|
||||
| CANCEL switch:
Pressed |
1.9 - 2.7 V
|
||||
| SET - switch:
Pressed |
2.9 - 3.6 V
|
||||
| RES + switch:
Pressed |
3.8 - 4.5 V
|
||||