Engine Error
P0197
Engine Oil Temperature Sensor Low
Severity
Medium
Symptoms
Check engine light, vehicle stays in open loop too long, rich exhaust
Common Causes
- Short to ground in EOT sensor circuit
- Defective EOT sensor
- Wire chafing on engine block
- Internal PCM short
How to Fix
- 1 Trace and fix short to ground
- 2 Replace EOT sensor
- 3 Wrap and secure wiring harness
- 4 Replace PCM
Estimated Repair Cost
USD
$80
–
$300
Wiring repair: 100; Sensor replacement: 80 - 200