Circuit Description

TBC module monitors circuit No. 80 (Light Green wire) to determine if ignition key is in ignition switch. See WIRING DIAGRAMS  . DTC will set when circuit is shorted to battery voltage or open, and ignition switch has been turned to RUN position.

Conditions for setting DTC:

• Circuit No. 80 is shorted to battery voltage or is open when ignition switch has been turned to RUN position.
• Ignition 1 circuit voltage is shorted to battery voltage and ignition key is not in ignition switch.
• System voltage 9-16 volts.
• Conditions met for .5 second.