FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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P0118



P0118 00

Engine Coolant Temperature Sensor Circuit. Short to B+/Open Circuit







Fault symptom
CHECK ENGINE
Incorrect temperature gauge reading.

On-board diagnosis

Type of diagnosis:
Continuous

Enable criteria:
Battery voltage must be between 11 - 16 V.
Ignition ON.

Fault criteria:
When voltage on input exceeds 4.85 V for more than 1.0 s.

Dependent:
None

System reaction to a fault:
-

OK report:
Fault criteria NOT fulfilled for 2 s when ignition on.

Fault handling:
Type III
(See Description of On-Board Diagnostics/Fault handling III, "Other emission-related components and functions" for more information.)

Checking the wiring harness
Move the wiring harness at several spots and in several directions to reveal intermittent breaks and short-circuits. Check switches, connectors and crimp connections for oxidation, retracted pins and pin clamping force.

Diagnostic help

Diagnosis regards:
Electrical fault in connecting leads or component.

Functions in the diagnostic tool related to the fault:
Test value:
- Engine Temperature