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VW Passat (B3) 1993 Cooling Fan Control Module Input/Output listing
Module connector/
terminal |
Description |
| T4/1 |
Power out to Coolant Fan V7 - HI speed |
| T4/2 |
Power out to Coolant Fan V7 - MED speed |
| T4/3 |
Power in from J32 A/C Relay and fuse S19, and F18 Coolant Fan
Control Thermal Switch Terminal 2 |
| T4/4 |
Power in from Battery positive |
| T8e/1 |
Power out to J206 Fuel Pump After Run Control Module |
| T8e/2 |
Input signal for MED speed Coolant Fan operation from F18 Coolant Fan Control Thermal Switch and/or F129 A/C Pressure Switch |
| T8e/3 |
Input signal for HI speed Coolant Fan operation from F165 Third Speed Coolant Fan Thermal Switch |
| T8e/4 |
Power in from fuse S13 |
| T8e/5 |
Power out to N25 A/C Compressor Clutch |
| T8e/6 |
Input signal from E33 A/C Evaporator Temperature Switch (anti-icing) and J44 A/C Clutch Relay |
| T8e/7 |
Ground connection 193 in wiring harness |
| T8e/8 |
Power out to F87 After Run Coolant Fan Control Thermal Switch |
VW Passat (B3) 1993 Radiator Cooling Fan operation
| Fan speed |
Description |
| LOW |
Operation is by F18 Coolant Fan Control Thermal Switch Terminal 2 at approximately 95°C or when A/C is switched on through J32 A/C Relay. Operation is independent of J293 Coolant Fan Control Module. |
| MED |
Operation is by F18 Coolant Fan Control Thermal Switch Terminal 1 at approximately 102°C and/or F129 A/C Pressure Switch at A/C high side pressure of approximately 15 Bar (221 psi). Operation is controlled by J293 Coolant Fan Control Module. |
| HIGH |
Operation is only by F165 Third Speed Coolant Fan Thermal Switch at approximately 119°C. Operation is controlled by J293 Coolant Fan Control Module. High speed fan operation occurs at near overheat conditions only. Note that the A/C Compressor clutch will also disengage at approximately 112°C through F163 A/C Cut-Out Thermal Switch. |
VW Passat (B3) 1993 Cooling Fan Wiring Diagram
| Description |
Current
track |
| Coolant Circulation Pump, V50 |
9 |
| Coolant Fan, V7 |
5-7 |
| Coolant FC (Fan Control) Control Module J293 |
4-12 |
| Coolant FC (Fan Control) Thermoswitch, F18 |
1-3 |
| Coolant FC (Fan Control) Thermoswitch F87 |
10 |
| ECT (Engine Coolant Temperature) Sensor, G2 |
11 |
| Third Speed Coolant Fan Control Thermoswitch, F165 |
14 |
| Wire connectors |
| T2 - |
double, behind relay panel |
| T2n - |
double, behind relay panel |
| T2p - |
double, behind relay panel |
| T4 - |
four point, on Coolant FC (Fan Control) Control Module |
| T8e - |
eight point, on Coolant FC (Fan Control) Control Module |
| T28 - |
twenty-eight point, on Instrument Cluster |
| T42 - |
fourty-two point, on Cylinder Head, left |
| Welded wiring harness points |
| K21 - |
wire connection -1-, in coolant fan wiring harness |
| K28 - |
plus connection (15), in coolant fan wiring harness |
| Ground connections |
| 15 - |
ground connection, on cylinder-head |
| 182 - |
ground connection -1-, in engine compartment wiring harness |
| 193 - |
ground connection -1-, in coolant fan wiring harness |
|
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