Reactor Error Code Trouble Shooting Guide
One of the over temperature switches failed in the "open" position. Open circuit in
the over temperature wiring harness, or switch "B" jumper is loose or open on a
dual zone heater systems.
Make sure connector J1/SENSOR B is firmly plugged into the heater control
module.
Check connections between the temperature control module and the heater over
temperature switches and the "A" & "B" temperature sensor. Make sure all of the
wires are securely connected into connector J1/SENSOR B.
Check continuity of the over temperature switches and the "A" & "B"
Thermocouples by removing the J1/SENSOR B connector from the temperature
control module socket. On the plug end check the resistance across pins 1 & 2 =
nearly Zero ohms, pins 3 & 4 = nearly Zero ohms. Pins 5 & 6 = 4 - 6 ohms. Pins
8 & 9 = 4 - 6 ohms. Pins 6 & 9 to chassis ground as "OL" open loop at ambient
temperature.
Rev 2.6 (02/2014)
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