G861989P3: the Engine Does Not Reach Normal Operating Temperature

PINPOINT TEST G861989p3: THE ENGINE DOES NOT REACH NORMAL OPERATING TEMPERATURE

G861989t5: CHECK THERMOSTAT

1. Check the thermostat for correct operation. REFER to the thermostat component test. Thermostat Test

^ Is the thermostat operating correctly?

-> Yes
Check for correct operation of cooling fans, circuits, sensors, modules, etc.

-> No
INSTALL a new thermostat.
TEST the system for correct operation.