|
No.
|
TECH 1 Display
|
Conditions for
Checking
|
Nominal Value
|
Trouble Codes
|
Terminal
|
|
03
|
COOLANT TEMP.
|
Engine running at idle speed,
operating temperature
(Voltage {V} changes at approx.
50 °C/122 °F)
|
85 to 110 °C/
185 to 230 °F
2.21 to 1.43 V
|
14,15
|
B
12/A 11
|
|
Trouble-shooting:
|
Nominal Value:
|
Cause of
Fault:
(If nominal
value is not attained)
|
|
· Ignition OFF
· Disconnect coolant
temperature sensor plug P 30
· Disconnect intake air
temperature sensor plug P 29
· Disconnect intake
manifold pressure sensor plug P 23
· Ignition ON
|
less than -35
°C/-95 °F
greater than
4,9 V
|
· Short circuit in wiring
harness
from: coolant temperature sensor P 30 (BL)
to: ground
or
from: coolant temperature sensor P 30 (BR)
to: coolant temperature sensor P 30 (BL)
|
|
· Ignition OFF
· Connect intake air
temperature sensor plug P 29
· Ignition ON
|
less than -35
°C/-95 °F
greater than
4,9 V
|
· Intake air temperature
sensor P 29 defective
|
|
· Ignition OFF
· Connect intake manifold
pressure sensor plug P 23
· Ignition ON
|
|
· Intake manifold pressure
sensor P 23 defective
|
|
· Ignition OFF
· Bridge coolant
temperature sensor plug P 30:
from: wiring harness plug (BR: brown)
to: wiring harness plug (BL: blue)
· Ignition ON
|
greater than
145 °C/
293 °F
less than 0,1
V
|
· Lead interruption
from: coolant temperature sensor P 30 (BL)
to: control unit K 57/K 91 Ter. B 12
or
from: coolant temperature sensor P 30 (BR)
to: control unit K 57/K 91 Ter. A 11
· Control unit defective
|
|
|
If nominal
values are attained
|
· Coolant temperature
sensor P 30 defective
|
|
|
|
|
|
|
|
|
