AISIN SEIKI E1 Series - Check for Readings of the Engine Exhaust Air Temperature Sensor; Check for Readings of the Outside Air Temperature Sensor

228
TROUBLESHOOTING
51) Check for Readings of the Outside Air Temperature Sensor
52) Check for Readings of the Engine Exhaust Air Temperature Sensor
[ Unit with deodorant kit only ]
1. Select "Outside air temperature (code No. 4d)" in the monitor
mode of the board maintenance functions to check outside air
temperature.
2. Measure actual temperature with a thermometer, and check
for the sensor reading's extreme deviation from the actual
temperature.
3. Measure the resistance value of the outside air temperature
sensor at CN6[9]-[10] on the main PCB, and check for extreme
deviation from the standard value.
Temperature Standard resistance value
-4 ℉ (-20 ℃ ) 39.6 kΩ
14 ℉ (-10 ℃ ) 24.0 kΩ
32 ℉ (0 ℃ ) 15.0 kΩ
50 ℉ (10 ℃ ) 9.6 kΩ
68 ℉ (20 ℃ ) 6.4 kΩ
86 ℉ (30 ℃ ) 4.2 kΩ
104 ℉ (40 ℃ ) 3.0 kΩ
1. Check engine exhaust air temperature by selecting
"Engine exhaust air temperature (code No. 53)" in
the monitor mode of the board maintenance func-
tions.
2. Measure actual temperature with a thermometer,
and check for the sensor reading's extreme deviation
from the actual temperature.
3. Measure the resistance value of the engine exhaust
air temperature sensor at CN6[7]-[8] on the main
PCB, and check for extreme deviation from the
standard value.
Temperature Standard resistance value
572 ℉ (300 ℃ ) 52.6 kΩ
752 ℉ (400 ℃ ) 11.5 kΩ
842 ℉ (450 ℃ ) 6.1 kΩ
932 ℉ (500 ℃ ) 3.5 kΩ
1,112 ℉ (600 ℃ ) 1.4 kΩ
1,202 ℉ (650 ℃ ) 0.9 kΩ
1,292 ℉ (700 ℃ ) 0.6 kΩ
1,382 ℉ (750 ℃ ) 0.5 kΩ
1,472 ℉ (800 ℃ ) 0.3 kΩ
1,652 ℉ (900 ℃ ) 0.2 kΩ
[ 8 TON ] [ 15 TON ]
Engine exhaust air temperature sensor
Engine exhaust air temperature sensor