|
No.
|
TECH
1-DISPLAY
|
Conditions
for Checking
|
Nominal
Value
|
Trouble
Codes
|
Terminal
|
|
02
|
COOLANT TEMP.
|
Engine running at idle speed, operating temperature
|
80 to 110 °C/
176 to 130 °F
1.5 to 0.8 V
|
14, 15
|
53, 13
|
|
|
|
|
|
|
|
|
Trouble-shooting
|
Nominal Value
|
Cause of
Fault:
(If nominal
value is not attained)
|
|
· Disconnect wiring harness plug from DDE control
unit K70
· Ignition ON
· Using multimeter, measure voltage
from: wiring harness plug for DDE
control unit K70 Ter. 53
to: ground
|
lower than 0.1 V
|
· Short circuit to voltage
from: wiring harness plug for DDE
control unit K70 Ter. 53
to: wiring harness plug for
coolant temperature sensor P30 Ter. 1
· Coolant temperature sensor P30 defective
|
|
|
|
|
|
· Ignition OFF
· Using multimeter, measure resistance
from: wiring harness plug for DDE
control unit K70 Ter. 53
to: ground
|
greater than 100 kW (¥)
|
· Short circuit to ground
from: wiring harness for DDE
control unit K70 Ter. 53
to: wiring harness plug for
coolant temperature sensor P 30 Ter. 1
and/ or:
from: wiring harness for DDE
control unit K70 Ter. 13
to: wiring harness plug for
coolant temperature sensor P 30 Ter. 2
· Coolant temperature sensor P30 defective
|
|
· Using multimeter, measure resistance
from: wiring harness plug for DDE
control unit K70 Ter. 53
|
Coolant temp. (°C)
|
Resistance (W)
|
Resistance greater than nominal value:
· Circuit interruption
from: wiring harness plug for DDE
|
|
to: wiring
harness plug for DDE
|
0
|
5800
- 6000
|
control
unit K70 Ter. 53
|
|
control unit
K70 Ter. 13
|
10
|
3700
- 3900
|
to wiring harness plug for coolant
|
|
|
20
|
2400
- 2600
|
temperature sensor P30 Ter. 1
|
|
|
30
|
1600
- 1700
|
· and/ or:
|
|
|
40
|
1100
- 1200
|
from: wiring harness plug for DDE
|
|
|
60
|
500 - 700
|
control unit K70 Ter. 13
|
|
|
80
|
300
- 400
|
to: wiring harness plug for coolant
|
|
|
90
|
200
- 300
|
temperature sensor P30 Ter. 2
|
|
|
100
|
150 - 200
|
· Coolant temperature sensor P30 defective
|
|
|
|
Resistance lower than nominal value:
· Short circuit in wiring harness
from: wiring harness plug for DDE
control unit K70 Ter. 53
to: wiring harness plug for
DDE control unit K70 Ter. 13
· Coolant temperature sensor P30 defective
|
|
|
If nominal values are attained
|
· DDE control unit K70 defective
|
|
|
|
|
|
|
|
|
|
|
|
|
