Engine Cooling Fan — Ford Taurus II (1991-1995)

APPLICATIONS

Application	Engine
Continental	3.8L
Escort & Tracer	1.8L & 1.9L
Mark VIII	4.6L
Mustang	2.3L
Probe	2.0L & 2.5L
Sable	3.0L & 3.8L
Taurus	3.0L, 3.0L SHO, 3.2L SHO & 3.8L
Tempo & Topaz	2.3L & 3.0L
Thunderbird	3.8L SC

ELECTRIC COOLING FAN APPLICATIONS

Note. On some models, Constant Control Relay Module (CCRM), which is part of Ford's Electronic Engine Control (EEC-IV) system, controls radiator cooling fan. Self-diagnostic codes must exist before resting CCRM. For complete information on EEC-IV system, see appropriate TESTS W/CODES - EEC-IV article in ENGINE PERFORMANCE section.

Continental, Sable, Taurus & Thunderbird SC

Electric cooling fan system consists of either a single-speed or dual-speed fan. A dual-speed fan is used on 3.0L, 3.2L SHO and 3.8L with A/T. A single-speed fan is used on Taurus 3.0L SHO with MTX.

On 3.0L A/T and 3.2L SHO, low-speed cooling fan motor operation is achieved by using a dropping resistor in series with motor. All models except 3.0L A/T and 3.2L SHO use a dual-speed fan motor. Cooling fan is controlled by Constant Control Relay Module (CCRM) and operates only when ignition is on.

Escort & Tracer

1.8L M/T uses a single-speed cooling fan. A cooling fan relay and coolant temperature switch mounted in radiator tank are used. 1.8L A/T uses a dual-speed cooling fan. A separate cooling fan switch and cooling fan relay are used for high and low fan speeds.

On 1.9L, Powertrain Control Module (PCM) controls cooling fan relay operation. On A/C-equipped models, a dual-speed cooling fan and 2 fan relays are used. On non-A/C model vehicles, a single-speed cooling fan and 2 fan relays are used.

Mark VIII

A variable speed cooling fan is used. The Variable Control Relay Module (VCRM) controls fan operation and speed. The VCRM also controls A/C clutch operation. The VCRM receives signals from the Powertrain Control Module (PCM) and A/C Pressure (ACP) sensor to operate cooling fan at high engine temperatures and during A/C operation.

Mustang

On 2.3L, electric cooling fan operates whenever engine coolant temperature reaches 221°F (105°C) with ignition on, or when A/C is on and vehicle speed is less than 43 MPH. Powertrain Control Module (PCM) and Constant Control Relay Module (CCRM) control cooling fan operation. CCRM is located in engine compartment near right shock tower. PCM module is located in right kick panel.

Probe

On 2.0L and 2.5L, a dual-speed electric cooling fan is used. Cooling fan is operated by high speed and low speed relays controlled by the Powertrain Control Module (PCM). On 2.0L M/T, Engine Coolant Temperature (ECT) sensor is used to sense coolant temperature. 2.0L A/T and 2.5L use a separate Cooling Fan Engine Coolant Temperature (ECTF) sensor to sense coolant temperature.

Tempo & Topaz

2.3L uses a single speed electric cooling fan. 3.0L uses a dual speed electric cooling fan. On all models, cooling fan is controlled by Constant Control Relay Module (CCRM) with information from Powertrain Control Module (PCM). System uses a coolant temperature switch. CCRM is located either on radiator support (2.3L) or on strut tower (3.0L).

Constant Control Relay Module (CCRM) energizes cooling fan under these conditions

Engine temperature is more than normal. On Thunderbird SC, low-speed fan comes on at temperature 222°F (106°C) and goes off at 214°F (101°C). On Continental, Sable and Taurus, low-speed fan comes on at temperature of 215°F (102°C) and goes off at 210°F (99°C).
A/C is on and vehicle speed is less than 43 MPH.
Cooling fan is operated at high speed if engine temperature is more than desirable and fan has been operating at a low speed. Fan comes on at a temperature of 230°F (110°C) and goes off at 224°F (107°C). On Continental, with engine idling, cooling fan operates at high speed when coolant temperature reaches 236°F (113°C). During hard acceleration, Wide Open Throttle A/C Cut-Off (WAC) relay controls A/C. A signal is first sent to Powertrain Control Module (PCM), then to CCRM; CCRM de-energizes A/C clutch, decreasing engine load during acceleration. On Continental, Sable and Taurus, PCM is located in right rear corner of engine compartment, on firewall. CCRM is located in left front corner of engine compartment, on upper radiator support. On Thunderbird SC, PCM is located behind right cowl panel, near radio antenna. CCRM is located in right front corner of engine compartment, near air cleaner assembly.

1.8L M/T uses a single-speed cooling fan. A cooling fan relay and coolant temperature switch are used for fan operation. When coolant temperature reaches 207°F (97°C), cooling fan switch closes, turning on cooling fan. On A/C-equipped models, cooling fan runs continuously when A/C is activated.

1.8L A/T uses a dual-speed cooling fan. A separate cooling fan switch and cooling fan relay are used for high and low speeds. High-speed fan switch closes when coolant temperature reaches 221°F (105°C). Low-speed fan switch closes when coolant temperature reaches 207°F (97°C). Cooling fan relays are located on left front fender apron.

On 1.9L, Powertrain Control Module (PCM) controls cooling fan relays. A/C-equipped models use a dual-speed cooling fan and 2 fan relays. Models without A/C use a single-speed cooling fan and 2 fan relays. Cooling fan relays are located on left front fender apron. PCM is located behind center of instrument panel.

Variable speed fan operation is controlled by Variable Control Relay Module (VCRM) with inputs from Engine Coolant Temperature (ECT) sensor and Powertrain Control Module (PCM). Fan operation and speed is determined by engine coolant temperatures and A/C operation. A/C high side pressure less than 150 psi will cause fan to run at approximately 1000 RPM; A/C high side pressure of 425 psi will cause fan to operate at approximately 1800 RPM (full speed). VCRM is located in front of radiator in center of vehicle.

Cooling fan system consists of a single-speed fan motor. Cooling fan operates only when ignition is on. Constant Control Relay Module (CCRM) and Powertrain Control Module (PCM) controls cooling fan.

Cooling fan turns on when engine coolant temperature is greater than 221°F (105°C), or when A/C is on and vehicle speed does not provide enough airflow. CCRM is located in engine compartment, near right shock tower. PCM is located in right kick panel.

Cooling fan is controlled by Powertrain Control Module (PCM). On 2.0L M/T, PCM receives input from Engine Coolant Temperature (ECT) sensor. On all models except 2.0L M/T, PCM receives input from ECT and Cooling Fan Engine Coolant Temperature (ECTF) sensor.

When coolant temperature is greater than 206°F (97°C), PCM energizes low speed relay and provides cooling fan operation. When engine coolant temperature reaches 226°F (108°C), PCM energizes high speed relay and provides high speed cooling fan operation. When A/C is on, condenser fan relay controls cooling fan relay and operates cooling fan at high speed.

Electric cooling fan operates only when ignition switch is in RUN position. Cooling fan is controlled by Powertrain Control Module (PCM). PCM receives signals from Engine Coolant Temperature (ECT) sensor, vehicle speed sensor and A/C clutch cycling pressure switch. Cooling fan should run when coolant temperature is greater than 210°F (99°C) and stop running when coolant temperature is less than 193°F (89°C).

Note. Cooling fans are controlled by Constant Control Relay Module (CCRM) and Powertrain Control Module (PCM). Check for self-diagnostic codes before testing CCRM. For complete information on EEC-IV system, see appropriate TESTS W/CODES - EEC-IV article in the ENGINE PERFORMANCE Section.

Cooling Fan Does Not Operate

Check fuses in engine compartment fuse panel. Disconnect Dark Blue and Brown/Orange wires from electric cooling fan motor. Using a fused jumper, connect jumper from positive battery terminal to Dark Blue (high speed) or Brown/Orange (low speed) terminal of fan motor. Fan motor should operate at appropriate speed. If fan motor does not operate at correct speed, cooling fan motor is defective. Replace cooling fan motor. If fan motor operates, see appropriate TESTS W/CODES - EEC-IV article in the ENGINE PERFORMANCE Section for diagnosis of CCRM.

Scheme 1

Scheme 1: ESCORT & TRACER

Check 15-amp ENGINE fuse in passenger compartment fuse/relay panel. If fuse is okay, go to step 2). If fuse is blown, replace fuse. If fuse blows again, check Black/White wire for short to ground. Check 40-amp COOLING FAN fuse (30-amp on 1.8L), located in main fuse panel. If fuse blows repeatedly, check for shorted wires to cooling fan and check cooling fan for shorted windings.
Turn ignition on. Measure voltage on Black/White wire at low-speed cooling fan relay. Low-speed cooling fan relay is located on left fender apron. (Scheme 1) If voltage is more than 10 volts, go to step 4). If voltage is less than 10 volts, check Black/White wire for open.
On 1.8L A/T or 1.9L A/C-equipped models, measure voltage on Black/White wire at high-speed cooling fan relay. (Scheme 1) If voltage is greater than 10 volts, go to step 4). If voltage is less than 10 volts, check Black/White wire for open.
Turn ignition on. Measure voltage on Black/Red wire (1.8L A/T) or Light Green/Black wire (1.9L) at high-speed cooling fan relay. If voltage is greater than 10 volts, go to step 6). If voltage is less than 10 volts, check Black/Red wire (1.8L A/T) or Light Green/Black wire (1.9L) for open.
On 1.8L A/T or 1.9L A/C-equipped models, measure resistance between Red/Black wire (1.8L) or Light Green wire (1.9L) between high-speed and low-speed cooling fan relays. If resistance is less than 5 ohms, go to step 6). If resistance is greater than 5 ohms, repair Red/Black wire (1.8L) or Light Green wire (1.9L).
Disconnect cooling fan relay (low speed relay on 1.9L). Turn ignition on. Connect a jumper wire between Black/White wire on relay harness connector and matching terminal on relay. On 1.9L, ground Yellow/White wire terminal on low speed relay. On 1.8L, ground Black/Green wire terminal. On 1.9L and A/C-equipped 1.8L with A/T, ground Black/Green wire at low-speed cooling fan relay. (Scheme 1) Resistance, at relay, between specified cooling fan relay terminals should be greater than 5 ohms. See «COOLING FAN RELAY RESISTANCE»(/ford/taurus/ii-1991-1995/remont/cooling-fan/#engine-cooling-fan) table. If resistance is greater than 5 ohms, go to step 7). If resistance is less than 5 ohms, replace defective cooling fan relay. COOLING FAN RELAY RESISTANCE (1) Application Wire Color 1.8L A/T Red/Black & Yellow M/T Black/Red & Yellow 1.9L With A/C Light Green & Yellow Without A/C Light Green/Black & Yellow (1) Resistance should be less than 5 ohms.
Disconnect high speed relay. Connect a jumper wire between Black/White wire at high speed relay harness connector and matching terminal on relay. Ground Black/Dark Green wire terminal on relay (1.8L A/T) or Red/Black wire terminal on relay (1.9L with A/C) at high-speed cooling fan relay. Measure resistance between Black/Red and Red/Black terminals (1.8L) or Light Green/Black and Light Green terminals (1.9L). Go to step 9) if resistance is less than 5 ohms. If resistance is more than 5 ohms, replace defective high-speed cooling fan relay.
Turn ignition on. Measure resistance between Black/Red and Dark Blue wire terminals (1.8L) or Light Green/Black and Light Green/Yellow wires (1.9L). If resistance is less than 5 ohms, go to step 9). If resistance is more than 5 ohms, replace defective high-speed cooling fan relay.
Turn ignition off and disconnect cooling fan (low speed) relay. Measure resistance of Yellow wire between cooling fan relay and cooling fan motor (1.8L M/T and 1.9L without A/C) or Yellow wire between low-speed cooling fan relay and cooling fan motor (1.8L A/T and 1.9L with A/C). If resistance is less than 5 ohms, go to step 11). If resistance is more than 5 ohms, check affected wire(s).
On 1.8L A/T and 1.9L A/C-equipped models, measure resistance on Dark Blue wire (1.8L) or Light Green/Yellow wire (1.9L) between high-speed cooling fan relay and cooling fan motor. If resistance is less than 5 ohms, go to step 11). If resistance is more than 5 ohms, check affected wire(s).
Turn ignition off. Measure resistance from Black wire at cooling fan motor to ground. If resistance is less than 5 ohms, go to step 12). If resistance is more than 5 ohms, check Black wire.
Turn ignition off. Apply 12 volts to Yellow wire at motor. If motor runs at low speed, go to step 14) for 1.9L without A/C, or step 16) for 1.8L M/T. If motor does not run at low speed, replace cooling fan motor.
On 1.8L A/T and 1.9L A/C-equipped models, apply 12 volts to Blue wire (1.8L A/T) or Light Green/Yellow wire (1.9L with A/C) at cooling fan motor. If motor runs at high speed, go to step 14) for 1.9L A/C-equipped models, or step 16) for 1.8L M/T. If cooling fan motor does not run at high speed, replace cooling fan motor.
Turn ignition on. On models without A/C, ground Yellow/White wire at PCM. PCM is located behind center of instrument panel. Motor should run at high speed. If motor does not run at high speed, see appropriate circuit test in appropriate TESTS W/CODES - EEC-IV article in the ENGINE PERFORMANCE Section. If motor does not run, check affected wire for an open circuit.
On A/C-equipped models, disconnect Yellow/White wire at PCM. PCM is located behind center of instrument panel. Ground Red/Black wire at PCM. If cooling fan motor runs at high speed, see appropriate circuit test in appropriate TESTS W/CODES - EEC-IV article in the ENGINE PERFORMANCE Section. If cooling fan motor does not run at high speed, check affected wire(s) for open circuit.
Checking Fan Motor Operation With By-Passed Cooling Fan Switch (1.8L) Disconnect cooling fan switch (located at coolant outlet connection). Ground Black/Green wire terminal in connector. If fan motor operates with Black/Green wire terminal grounded, go to step 17). If fan motor does not operate, check for defective Black/Green wire.
Disconnect cooling fan switch connector. Connect ohmmeter to cooling fan switch terminals. Start engine. Check switch continuity as engine temperature increases. NOTE: On 1.8L A/T, high-speed fan switch is located in radiator tank.
If no continuity exists when engine is hot, remove switch from engine. Place switch in a container with a 50/50 mixture of coolant and water. Place thermometer in container. Heat mixture, and monitor switch continuity. See «COOLING FAN SWITCH CONTINUITY»(/ford/taurus/ii-1991-1995/remont/cooling-fan/#engine-cooling-fan) table. If switch operates within specified range, cooling fan switch is okay. If switch does not operate within specified range, replace cooling fan switch. COOLING FAN SWITCH CONTINUITY Condition Temperature Low Speed Fan Switch Closing Temp. & Greater (1) 207°F (97°C) Opening Temp. & Less (2) 194°F (90°C) High Speed Fan Switch (A/T) Closing Temp. & Greater (1) 221°F (105°C) Opening Temp. & Less (2) 205°F (96°C) (1) Switch closed - continuity (0-5 ohms). (2) Switch open - no continuity (10,000 ohms minimum).

Note. Cooling fan is controlled by Variable Control Relay Module (VCRM) and Powertrain Control Module (PCM). Check for self-diagnostic codes before testing VCRM. For complete information on EEC-IV system, see TESTS W/CODES - EEC-IV article in the ENGINE PERFORMANCE Section.

Cooling Fan Inoperative

Inspect fusible links "G" (Brown), "H" (Brown) and "J" (Dark Blue) to PCM. Fusible links are located on left fender apron, at starter relay. Repair or replace as necessary.
Battery voltage should exist at Black/Orange wire, Yellow wire and Pink/Black wire to PCM. PCM is located on front of right shock tower. Continuity should exist on Black wire from cooling fan motor to ground.
If all wires are okay, disconnect Dark Blue wire from electric cooling fan motor. Using a fused jumper, connect jumper from positive battery terminal to positive terminal of fan motor. Fan motor should operate at high speed. If fan motor does not operate, cooling fan motor is defective. Replace cooling fan motor. If fan motor operates, see «TESTS W/CODES - 2.3L»(ref-22867) article in the ENGINE PERFORMANCE section for diagnosis of CCRM.

PROBE 2.0L

Note. Before proceeding with cooling fan circuit tests, check self-diagnostic trouble codes. See appropriate TESTS W/CODES article in the ENGINE PERFORMANCE Section. Repair any trouble codes first. If no trouble codes exist, proceed with cooling fan testing procedure.

Cooling Fan Inoperative Turn ignition off. Check 15-amp ENGINE fuse located in interior fuse panel and 40-amp COOLING FAN fuse located in main fuse panel. If new fuse blows repeatedly, disconnect Black/White wire at 10-pin connector and disconnect low and high speed fan relay connectors. Using DVOM, check for short to ground in Black/White wire. If resistance is more than 10,000 ohms, go to next step. Resistance less than 10,000 ohms indicates short in Black/White wire. Repair wire as necessary. Restore electrical connections.
Checking Power Supply To Fan Relays Disconnect low and high speed fan relays. Turn ignition on. Measure voltage of Black/White wire at both low and high speed fan relays. If voltage is 10 volts or more, go to next step. Restore electrical connections. If voltage is less than 10 volts, service Black/White wire.
Checking High Speed Fan Relay Turn ignition off. Disconnect high speed fan relay. Apply 12 volts to Black/Red and Black/White wire terminals on high speed fan relay. Measure voltage at Red wire terminal on relay. Voltage of 10 volts or greater should be present. Ground Blue/Green wire terminal. Check voltage at Blue/Black wire terminal. Voltage of 10 volts or greater should be present. Replace relay if it fails any of these tests. If relay tests okay, go to next step.
Checking System Wiring Disconnect high speed fan relay connector and cooling fan connector. Measure resistance of Blue/Black wire between high speed fan relay connector and cooling fan motor connector. If resistance is 5 ohms or greater, service Blue/Black wire. If resistance is less than 5 ohms, check Blue/Black wire for continuity to ground. Resistance should exceed 10,000 ohms. Locate short and service wire if necessary. If wire is okay, check cooling fan Black wire for good ground. Resistance should be 5 ohms or less.
Check cooling fan operation If fan is still inoperative and all previous tests check okay, replace cooling fan. If fan operates only on low speed, check continuity of Red wire between low speed and high speed fan relay. Service Red wire if necessary. If Red wire is okay, go to next step.
Checking Low Speed Fan Relay Turn ignition off. Disconnect low speed fan relay. Apply 12 volts to Black/White wire terminal and Red wire terminal on low speed fan relay. Apply ground to Blue/Orange wire terminal. Measure voltage at Blue/Yellow wire terminal on relay. If less than 10 volts is measured at Blue/Yellow wire terminal, replace relay. If 10 volts or more is measured at Blue/Yellow wire terminal, check continuity of Blue/Orange wire. If resistance is 5 ohms or greater, service wire. If Blue/Orange wire is okay, replace cooling fan motor.

PROBE 2.5L (COOLING FAN)

Note. Before proceeding with cooling fan circuit tests, check for self-diagnostic trouble codes. See TESTS W/CODES - 2.5L article in the ENGINE PERFORMANCE Section. Repair any trouble codes first. If no trouble codes exist, proceed with cooling fan testing procedure.

Cooling Fan Inoperative Check 15-amp ENGINE fuse and 15-amp AIR COND fuse, located in interior fuse panel. Also check 40-amp COOLING FAN fuse and 40-amp AIR COND fuse located in main fuse panel. Replace any blown fuses. If 15-amp ENGINE fuse or 40-amp COOLING FAN fuse repeatedly blows, go to next step. If fuses are okay, go to step 3).
Remove 40-amp COOLING FAN fuse and disconnect 10-pin fuse panel connector. Disconnect low and high speed fan relays. Using a DVOM, check for short to ground in Black/White wire between 10-pin interior fuse panel connector and cooling fan low and high speed fan relay connectors. Also check for short to ground in Black/Red wire at 40-amp COOLING FAN fuse terminal. If resistance is less than 5 ohms, service Black/White wire. If resistance is more than 5 ohms, go to next step. Reconnect electrical connections.
Checking Power Supply To Fan Relays Disconnect low and high speed fan relays. Turn ignition on. Measure voltage of Black/White wire at both low and high speed fan relays. Measure voltage on Black/Red wire at high speed fan relay connector. If voltage is less than 10 volts, service wire in question. If voltage is 10 volts or more, go to next step.
Checking High Speed Fan Relay Turn ignition off. Disconnect high speed fan relay. Apply 12 volts to Black/Red and Black/White wire terminals on high speed fan relay. Measure voltage at Red wire terminal on relay. Voltage of 10 volts or greater should be present. Ground Blue/Green wire terminal. Check voltage at Blue/White wire terminal. Voltage of 10 volts or greater should be present. Replace relay if it fails any of these tests. If relay tests okay, go to next step.
Checking System Wiring Disconnect high speed fan relay connector and cooling fan connector. Measure resistance of Blue/White wire between high speed fan relay connector and cooling fan motor connector. If resistance is 5 ohms or greater, service Blue/Black wire. If resistance is less than 5 ohms, check Blue/White wire for short to ground. Resistance should exceed 10,000 ohms. Locate short and service wire if necessary. If wire is okay, check cooling fan Black wire for good ground. Resistance should be 5 ohms or less.
Check cooling fan operation If fan is still inoperative and all previous tests check okay, replace cooling fan. If fan operates only on low speed, check continuity of Red wire between low speed and high speed fan relays. Service Red wire if necessary. If Red wire is okay, go to next step.
Checking Low Speed Fan Relay Turn ignition off. Disconnect low speed fan relay. Apply 12 volts to Black/White wire terminal and Red wire terminal on low speed fan relay. Apply ground to Red/White wire terminal. Measure voltage at Blue/Orange wire terminal on relay. If less than 10 volts is measured at Blue/Orange wire terminal, replace relay. If 10 volts or more is measured at Blue/Orange wire terminal, go to next step.
Disconnect condenser fan motor connector. Check continuity of Blue/Orange wire between low speed fan relay and cooling fan motor connector. Service Blue/Orange wire if resistance is 5 ohms or greater. If resistance is less than 5 ohms, replace cooling fan motor.

PROBE 2.5L (CONDENSER FAN)

Condenser Fan Inoperative Check 15-amp AIR COND fuse in interior fuse panel. Check 40-amp AIR COND fuse in main fuse panel. Replace blown fuses. If fuse repeatedly blows, go to next step. If fuses are okay, go to step 3).
Checking For Shorted Power Circuit Turn ignition off. Remove 40-amp AIR COND fuse. Disconnect 10-pin interior fuse panel connector. Disconnect low and high speed condenser fan relays. Using a DVOM, check for short to ground in Blue/Black wire. Check for short to ground in Green/Orange wire at 40-amp AIR COND fuse terminal. Repair suspect wire as necessary. If wire is okay, restore electrical connections and go to next step.
Checking Power Supply Turn ignition off. Disconnect low and high speed condenser fan relays. Turn ignition on. Measure voltage of Blue/Black wires at both low speed and high speed condenser fan relays connectors. Measure voltage of Green/Orange wire high speed condenser fan relay connector. If voltage readings are 10 volts or less, service suspect wire. If any voltage reading is greater than 10 volts, go to next step.
Checking High Speed Condenser Fan Relay Turn ignition off. Disconnect high speed condenser fan relay. Apply 12 volts to Green/Orange and Blue/Black wire terminals on relay. Measure voltage of Red/Yellow wire terminal on relay. Voltage should be 10 volts or more. Ground Blue/Green wire terminal on relay. Measure voltage of Pink wire terminal on relay. Voltage reading should be 10 volts or more. If relay fails any of these tests, replace relay. If relay is okay, go to next step.
Checking Condenser Fan Circuit Wiring Disconnect condenser fan connector. Disconnect high speed condenser fan relay. Measure resistance of Pink wire between high speed condenser fan relay and cooling fan motor. Resistance reading should be less than 5 ohms. If reading is greater than 5 ohms, service Pink wire. Check Pink wire for short to ground. Resistance reading should be more than 10,000 ohms. Service Pink wire if shorted to ground.
Reconnect high speed condenser fan relay. Disconnect low speed condenser fan relay. Measure voltage of Red/Yellow wire at low speed condenser fan relay connector. If voltage is less than 10 volts, service Red/Yellow wire. If voltage is greater than 10 volts, go to next step.
Checking Low Speed Condenser Fan Relay Turn ignition off. Disconnect low speed condenser fan relay. Apply 12 volts to Blue/Black wire terminal and Red/Yellow wire terminal on low speed fan relay. Apply ground to Blue/Orange wire terminal. Measure voltage at Blue/Yellow wire terminal on relay. If less than 10 volts is measured at Blue/Yellow wire terminal, replace relay. If 10 volts or more is measured at Blue/Yellow wire terminal, go to next step.
Disconnect condenser fan motor connector. Check continuity of Blue/Orange wire between low speed condenser fan relay and cooling fan motor connector. Service Blue/Yellow wire if resistance is 5 ohms or greater. If resistance is less than 5 ohms, go to next step.
Checking Condenser Fan Ground Circuit Disconnect condenser fan motor connector. Measure resistance of Black wire between condenser fan motor connector and low speed condenser fan relay. If resistance reading is 5 ohms or more, service Black wire. If resistance reading is less than 5 ohms, replace condenser fan motor.

Cooling Fan Does Not Operate (2.3L) Or Does Not Operate In Low Speed (3.0L)

Check for continuity in Black wire to ground from electric cooling fan connector. Check for battery voltage on Yellow wire in connector at Constant Control Relay Module (CCRM). Repair open in Black ground wire if continuity or battery voltage does not exist.
Check for inoperative CCRM. Ground Tan/Orange wire at CCRM. Check for battery voltage on Dark Blue wire at CCRM. If voltage is not present, check CCRM. If fan operates, check Tan/Orange wire for open. For complete information on Ford's EEC-IV system, see appropriate TESTS W/CODES - EEC-IV article in the ENGINE PERFORMANCE Section.
If fan motor does not operate, apply battery voltage to Blue wire at fan motor. If fan does not operate, check electric cooling fan motor and repair or replace as necessary. If fan operates, check Dark Blue wire for open. If Dark Blue wire is okay, see appropriate TESTS W/CODES - EEC-IV article in the ENGINE PERFORMANCE Section for diagnostics of CCRM.

Cooling Fan Does Not Operate In High Speed (3.0L)

Check for battery voltage on Yellow wire at Constant Control Relay Module (CCRM). If no voltage is present, correct open circuit in Yellow wire.
Apply battery voltage to Light Green/Purple wire at cooling fan. If cooling fan does not operate, check fan motor and fan motor ground wire. If cooling fan operates, see appropriate TESTS W/CODES - EEC-IV article in the ENGINE PERFORMANCE Section for diagnostics of CCRM.