Notes On Intermittents

Manipulate wiring on circuit No. 410, coolant sensor, and ECM connector while observing ECM parameter ED04. If failure is induced, coolant temperature will jump from its normal value to the shorted reading of 142-151°C.

Disconnect and reconnect both the coolant sensor and ECM connectors, and ensure that they are properly latched. If wiring and connectors are okay, substitute and known good sensor and retest.

Review snapshot data parameters stored with this code to verify failure. If failure is verified, check and repair intermittent wiring connection or sensor.

Fig 1: Schematic, Code EO14, Shorted Coolant Sensor Circuit

Fig 2: Flow Chart, Code EO14, Shorted Coolant Sensor Circuit

Fig 3: Flow Chart, Code EO14, Shorted Coolant Sensor