|
No.
|
TECH
1-DISPLAY
|
Conditions
for Checking
|
Nominal
Value
|
Trouble
Codes
|
Terminal
|
|
04
|
BOOST TEMPERATUR
|
Engine running at idle speed, operating temperature
|
10 to 70 °C/
50 to 158 °F
4.7 to 2.5 V
|
73, 74
|
52, 13
|
|
|
|
|
|
|
|
|
Trouble-shooting
|
Nominal Value
|
Cause of
Fault:
(If nominal
value is not attained)
|
|
· Ignition ON
· Disconnect wiring harness plug from charge air
temperature sensor P29
· TECH 1 parameter BOOST TEMPERATUR
|
4.5 to 5.5 V
(The corresponding trouble code is set and the
replace-ment value of 4.98 V is used)
|
Voltage lower than 4.5 V
(TECH 1/ multimeter):
· Short circuit to ground
from: wiring harness plug for DDE
control unit K70 Ter. 52
to: wiring harness plug for
charge air temperature sensor P29 Ter. 1
· DDE control unit K70 defective
|
|
|
|
|
|
· Using multimeter, measure voltage
from: wiring harness plug for
charge air temperature sensor P29 Ter. 1
to: ground
|
4.5
to 5.5 V
|
Voltage greater than 5.5 V (multimeter):
· Short circuit to voltage
from: wiring harness plug for DDE
control unit K70 Ter. 52
to: wiring harness plug for
charge air temperature sensor P29 Ter. 1
· DDE control unit K70 defective
|
|
|
|
|
|
· Bridge wiring harness plug for charge air
temperature sensor P29 with electrically fused jumper
from: charge air temperature
sensor P29 Ter. 1
to: ground
· TECH 1 parameter BOOST TEMPERATUR
|
lower than 0.1 V
|
· Short circuit to voltage/ circuit interruption
from: wiring harness plug for DDE
control unit K70 Ter. 52
to: wiring harness plug for
charge air temperature sensor P29 Ter. 1
· DDE control unit K70 defective
|
|
|
|
|
|
· Bridge wiring harness plug for charge air
temperature sensor P29 with electrically fused jumper
from: wiring harness plug for
charge air temperature sensor P29 Ter. 1
to: wiring harness plug for
charge air temperature sensor P29 Ter. 2
· TECH 1 parameter BOOST TEMPERATUR
|
lower than 0.1 V
|
· Circuit interruption
from: wiring harness plug for DDE
control unit K70 Ter. 13
to: wiring harness plug for
charge air temperature sensor P29 Ter. 2
· DDE control unit K70 defective
|
|
|
|
|
|
|
If nominal values are attained
|
· Charge air temperature sensor P29 defective
|
|
|
|
|
|
|
|
|
|
|
|
