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Home >> Jeep >> 2014 >> Wrangler Sahara, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 189 ((Totally Integrated Power Module (TIPM) - Electrical Diagnostics)) >> DTC Troubleshooting >> P0694-Cooling Fan 2 Control Circuit High - 3.6L >> Theory Of Operation

Theory Of Operation

WARNING: This page is about a different car, the 2016 Jeep Wrangler and 2015 Jeep Wrangler. However, it is still accessible from the selected car via links, so may be relevant.

The pulse-width modulated (PWM) fan receives a duty cycle signal from the Totally Integrated Power Module (TIPM) on the (K175) Rad Fan High Speed Control circuit. Based on the requested fan speed from the PCM, the TIPM outputs a 10 Hz duty cycle signal on the (K175) Rad Fan High Speed Control circuit to the Radiator Cooling Fan. The Radiator Cooling Fan receives the duty cycle signal from the TIPM and controls the fan accordingly. The High Speed Cooling Fan Relay is not used to control any components and has no external function.

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