Cause of error code E60

Return sens shorted.

Solution for error code E60

1. Disconnect harness from Return Temperature Sensor. Measure resistance across sensor terminals. Is resistance less than 50 ohms?
Yes: Replace Return Water Sensor.
No: -> 2.

2. Disconnect harness from Control Module J5. Measure resistance between brown wires at terminals J5-4 and J5- 12. Is resistance less than 50 ohms?
Yes: Replace wires.
No: Replace Control Module.