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Diagnostic Procedures

WARNING: This page is about a different car, the 2003 GMC Sierra and 2003 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: DTC P0116: Engine Coolant Temperature Sensor Performance (Steps 1-9)
G00239755Courtesy of GENERAL MOTORS CORP.
Fig 2: DTC P0116: Engine Coolant Temperature Sensor Performance (Steps 10-13)
G00239756Courtesy of GENERAL MOTORS CORP.
SENSOR TEMPERATURE VS. RESISTANCE

Temperature - °F (°C) (1) Ohms
302 (150) 47
284 (140) 60
266 (130) 77
248 (120) 100
230 (110) 132
212 (100) 177
194 (90) 241
176 (80) 332
158 (70) 467
140 (60) 667
122 (50) 973
113 (45) 1188
104 (40) 1459
95 (35) 1802
86 (30) 2238
77 (25) 2796
68 (20) 3520
59 (15) 4450
50 (10) 5670
41 (5) 7280
32 (0) 9420
23 (-5) 12,300
14 (-10) 16,180
5 (-15) 21,450
-4 (-20) 28,680
-22 (-30) 52,700
-40 (-40) 100,700
(1) Measure resistance across sensor terminals.