Section052–TEC ENGINE MANAGEMENT
Subsection 02 (COMPONENT INSPECTION AND ADJUSTMENT)
RESISTANCE MEASUREMENT
When measuring the resistance with an ohmme-
ter, all values are given for a temperature of 20°C
(68°F). The resistance value of a resistance varies
with the temperature. The resistance value for
usual resistor or windings (such as injectors) in-
creases as the temperature increases. However,
our temperature sensors are NTC types (Negative
Temperature Coefficient) and work the opposite
which means that the resistance value decreases
as the temperature increases. Take it into account
when measuring at temperatures different from
20°C(68°F). Use this table for resistance variation
relative to temperature for temperature sensors.
TEMPERATURE SENSOR TABLE
TEMPERATURE RESISTANCE (ohms)
WTS for
°C °F ATS EGTS
GAUGE ECM
-40 -40 169.7 72412
-35 -31 52637
-30 -22 28000 38681
-25 -13 28718
-20 -4 14500 185.1 733.8 21529
-15 5 587.7 16288
-10 14 474 12431
-5 23 384.8 9565
0 32 5500 200.5 314.3 7418
5 41 258.4 5807
10 50 213.7 4582
15 59 177.7 3644
20 68 2500 148.7 2919
25 77 219.6 125 2355
30 86 105.6 1912
35 95 98.69 1562
40 104 1200 76.5 1284
45 113 65.54 1062
50 122 238.5 56.38 882.6
55 131 48.72 738.9
60 140 600 42.28 622
TEMPERATURE SENSOR TABLE
TEMPERATURE RESISTANCE (ohms)
WTS for
°C °F ATS EGTS
GAUGE ECM
65 149 36.82 526.3
70 158 32.19 447.5
75 167 28.24 382.3
80 176 320 24.86 328.1
85 185 21.95 282.8
90 194 19.45 244.8
95 203 17.28 212.8
100 212 180 275.9 15.4 185.6
105 221 162.4
110 230 142.7
115 239 125.9
120 248 111.5
125 257 99.02
130 266 90 88.26
135 275 78.93
140 284 70.81
145 293 63.71
150 302 312.7 57.49
200 392 349.0
250 482 384.6
300 572 419.7
350 662 454.2
400 752 488.1
450 842 521.4
500 932 554.1
600 1112 617.8
700 1292 679.2
800 1472 738.2
900 1652 794.9
1000 1832 849.2
mmr2004-Rev 175
To Next Page
Loading...
Need help?
General
