2000 Crown Victoria/Grand Marquis Workshop Manual

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1 Page 1 of 15 SECTION : Wipers and Washers 2000 Crown Victoria/Grand Marquis Workshop Manual DIAGNOSIS AND TESTING Procedure revision date: 06/21/1999 Wipers and Washers Refer to Wiring Diagrams Cell 81, Interval Wiper/Washer for schematic and connector information. Special Tool(s) Worldwide Diagnostic System (WDS) 418-F224, New Generation STAR (NGS) Tester 418-F052, or equivalent scan tool 73 Digital Multimeter or equivalent 105-R0051 Principles of Operation The windshield wiper system uses a two-speed, permanent magnet, three-brush electric wiper motor. When the multifunction switch is in the LO position, the common brush and the blue/orange wire brush are used. When the multifunction switch is in the HI position, the common brush and the white wire brush are used. Current bypasses a portion of the armature winding when the wiper motor is in the high-speed mode. When the multifunction switch is moved to the OFF position, the wiper motor will continue in low-speed mode until the wiper motor reaches the parked position. Then a switch internal to the motor will remove power to the wiper motor. The interval mode works with the low-speed position of the motor. The interval mode can be set from a 1-second delay up to a 17-second delay. The pause is decreased as the knob is rotated away from the OFF position. It is normal to be able to hear the relay clicking on and off in interval mode. When the washer system is engaged in interval mode or the windshield wipers are off, the wipers will cycle as long as the washer button is depressed. When the washer button is released, the washer spray will stop and the wipers will stay on for three to four more cycles. If the wipers are in the LO or HI position and the washer button is pressed, the wipers will not change speed or stop. The windshield washer system uses a nonadjustable nozzle jet to spray the washer fluid onto the windshield. The fluid is sprayed in a high-speed continuous stream across the windshield, making a fan-like pattern. A low windshield washer fluid warning is included on vehicles with an electronic instrument cluster. The LOW WASHER FLUID indicator will illuminate when the washer fluid is approximately one-fourth full or lower. The fluid level is determined by an internal switch to the washer reservoir. If the switch fails, install a new washer fluid reservoir. Inspection and Verification 1. Verify the customer concern. 2. Visually inspect for obvious signs of mechanical and electrical damage. Visual Inspection Chart Mechanical Wiper blade missing or damaged Binding wiper pivot arm Binding wiper mounting arm and pivot shaft Empty washer reservoir Kinked or broken washer hoses Electrical Central junction box (CJB) Fuse 2 (30A) Damaged wiper motor Circuitry Damaged or corroded connectors Damaged washer pump Inoperative multifunction switch Wiper control module Thermal breaker internal to the wiper motor 3. If the concern is not visually evident, determine the symptom and proceed to Symptom Chart to continue diagnostics. Symptom Chart Symptom Chart Condition Possible Sources Action The washer pump is inoperative The washer pump is inoperative runs continuously The wipers are inoperative Fluid level. Washer hose. Washer pump motor. Washer pump motor. CJB Fuse 2 (30A). Wiper motor. Windshield wiper assembly. GO to Pinpoint Test A. GO to Pinpoint Test B. GO to Pinpoint Test C.

2 Page 2 of 15 The high wiper speeds do not operate correctly The low wiper speeds do not operate correctly The intermittent wiper speed does not operate correctly The wipers will not park at the correct position The wipers stay on continuously Wiper motor. Wiper motor. Wiper motor. Wiper motor. Bent/cracked linkages. Mispositioned arms. Wiper motor. GO to Pinpoint Test D. GO to Pinpoint Test E. GO to Pinpoint Test F. GO to Pinpoint Test G. GO to Pinpoint Test H. Pinpoint Tests PINPOINT TEST A: THE WASHER PUMP IS INOPERATIVE A1 CHECK THE WASHER PUMP OPERATION Press the wash button on the multifunction switch. Does the washer pump motor operate correctly? GO to A2. A2 INSPECT FOR BLOCKAGE OR OBSTRUCTION GO to A3. Inspect the washer nozzle, washer hoses, and the washer pump for blockages or obstructions. Are any blockages or obstructions present? A3 CHECK THE WASHER PUMP MOTOR FOR VOLTAGE CIRCUIT 941 (BK/WH) INSTALL a new component or REPAIR as necessary. TEST the system for normal operation. INSTALL a new washer pump motor. REFER to Washer Pump and Reservoir. TEST the system for normal operation. Washer Pump Motor C1022 Press the wash button on the multifunction switch while measuring the voltage between washer pump motor C1022, Circuit 941 (BK/WH), harness side and ground.

3 Page 3 of 15 Is the voltage greater than 10 volts? GO to A4. A4 CHECK THE WASHER PUMP MOTOR GROUND GO to A5. Measure the resistance between washer pump motor C1022, Circuit 57 (BK), harness side and ground. A5 CHECK CIRCUIT 941 (BK/WH) FOR SHORT TO GROUND INSTALL a new washer pump motor. REFER to Washer Pump and Reservoir. TEST the system for normal operation. REPAIR Circuit 57 (BK). TEST the system for normal operation. Measure the resistance between washer pump motor C1022, Circuit 941 (BK/WH), harness side and ground. INSTALL a new multifunction switch. TEST the system for normal operation. A6 CHECK CIRCUIT 941 (BK/WH) FOR OPEN GO to A6. Measure the resistance between wiper control module C294 Pin 4, Circuit 941 (BK/WH), harness side and washer pump motor C1022, Circuit 941 (BK/WH), harness side. INSTALL a new wiper control module. REFER to Module Windshield Wiper Control. TEST the system for

4 Page 4 of 15 normal operation. REPAIR Circuit 941 (BK/WH). TEST the system for normal operation. PINPOINT TEST B: THE WASHER PUMP IS INOPERATIVE RUNS CONTINUOUSLY B1 CHECK THE WIPER CONTROL MODULE FOR SHORT TO POWER Does the washer pump motor operate? GO to B2. RECONNECT the wiper control module. GO to B3. B2 CHECK CIRCUIT 941 (BK/WH) FOR SHORT TO POWER Washer Pump Motor C1022 Does the washer pump motor operate? B3 CHECK MULTIFUNCTION SWITCH INSTALL a new washer pump motor. REFER to Washer Pump and Reservoir. TEST the system for normal operation. REPAIR Circuit 941 (BK/WH.). TEST the system for normal operation. Multifunction Switch C269 Does the washer pump motor operate? INSTALL a new wiper control module. REFER to Module Windshield Wiper Control. TEST the system for normal operation. INSTALL a new multifunction switch. REFER to Section TEST the system for normal operation. PINPOINT TEST C: THE WIPERS ARE INOPERATIVE

5 Page 5 of 15 C1 CHECK FOR VOLTAGE TO THE WIPER CONTROL MODULE CIRCUIT 65 (DG) Measure the voltage between wiper control module C294 Pin 2, Circuit 65 (DG), harness side and ground. Is the voltage greater than 10 volts? GO to C2. C2 CHECK CIRCUIT 57 (BK) FOR OPEN REPAIR Circuit 65 (DG). TEST the system for normal operation. Measure the resistance between wiper control module C294 Pin 3, Circuit 57 (BK), harness side and ground; and between wiper control module Pin 5, Circuit 57 (BK), harness side and ground. GO to C3. C3 CHECK MULTIFUNCTION SWITCH OUTPUT REPAIR Circuit 57 (BK). TEST the system for normal operation. Turn the multifunction switch to the HI position. Measure the resistance between wiper control module C294 Pin 7, Circuit 993 (BN/WH), harness side and wiper control module C294 Pin 1, Circuit 589 (OG), harness side.

6 Page 6 of 15 GO to C6. C4 CHECK CIRCUIT 993 (BN/WH) FOR OPEN GO to C4. Multifunction Switch C269 Measure the resistance between multifunction switch C269 Pin 4, Circuit 993 (BN/WH), harness side and wiper control module C294 Pin 7, Circuit 993 (BN/WH), harness side. GO to C5. C5 CHECK CIRCUIT 589 (OG) FOR OPEN REPAIR Circuit 993(BN/WH). TEST the system for normal operation. Measure the resistance between multifunction switch C269 Pin 1, Circuit 589 (OG), harness side and wiper control module C294 Pin 1, Circuit 589 (OG), harness side. C6 CHECK THE WIPER CONTROL MODULE OUTPUT FOR VOLTAGE INSTALL a new multifunction switch. REFER to Section TEST the system for normal operation. REPAIR Circuit 589 (OG). TEST the system for normal operation. Wiper Motor C151 Turn the multifunction switch to the HI position.

7 Page 7 of 15 Measure the voltage between wiper motor C151 Pin 5, Circuit 61 (YE/RD), harness side and wiper motor C151 Pin 7, Circuit 58 (WH), harness side. Is the voltage greater than 10 volts? CARRY OUT the Windshield Wiper Motor Test. REFER to component test. TEST the system for normal operation. C7 CHECK CIRCUIT 61 (YE/RD) FOR OPEN GO to C7. Measure the resistance between wiper motor C151 Pin 5, Circuit 61 (YE/RD), harness side and wiper control module C294 Pin 12, Circuit 61 (Y/RD), harness side. INSTALL a new wiper control module. REFER to Module Windshield Wiper Control. TEST the system for normal operation. REPAIR Circuit 61 (YE/RD). TEST the system for normal operation. PINPOINT TEST D: THE HIGH WIPER SPEEDS DO NOT OPERATE CORRECTLY D1 CHECK THE VOLTAGE TO THE WIPER MOTOR CIRCUIT 58 (WH) Wiper Motor C151 Turn the multifunction switch to the HI position. Measure the voltage between wiper motor C151 Pin 7, Circuit 58 (WH), harness side and ground.

8 Page 8 of 15 Is the voltage greater than 10 volts? CARRY OUT the Windshield Wiper Motor Test. REFER to component test. TEST the system for normal operation. D2 CHECK CIRCUIT 58 (WH) FOR OPEN GO to D2. Measure the resistance between wiper control module C294 Pin 14, Circuit 58 (WH), harness side and wiper motor C151 Pin 7, Circuit 58 (WH), harness side. GO to D3. D3 CHECK CIRCUIT 58 (WH) FOR SHORT TO GROUND REPAIR Circuit 58 (WH). TEST the system for normal operation. Measure the resistance between wiper motor C151 Pin 7, Circuit 58 (WH), harness side and ground. GO to D4. D4 CHECK MULTIFUNCTION SWITCH INPUT REPAIR Circuit 58 (WH). TEST the system for normal operation. Turn the multifunction switch to the HI position. Measure the resistance between wiper control module C294 Pin 1, Circuit 589 (OG), harness side and wiper control module C294 Pin 7, Circuit 993 (BN/WH), harness side.

9 Page 9 of 15 INSTALL a new wiper control module. REFER to Module Windshield Wiper Control. TEST the system for normal operation. INSTALL a new multifunction switch. REFER to Section TEST the system for normal operation. PINPOINT TEST E: THE LOW WIPER SPEEDS DO NOT OPERATE CORRECTLY E1 CHECK FOR VOLTAGE TO WIPER MOTOR CIRCUIT 56 (DB/OG) Wiper Motor C151 Turn the multifunction switch to the LO position. Measure the voltage between wiper motor C151 Pin 6, Circuit 56 (DB/OG), harness side and wiper motor C151 Pin 5, Circuit 61 (YE/RD), harness side. Is the voltage greater than 10 volts? E2 CHECK CIRCUIT 56 (DB/OG) FOR SHORT TO GROUND CARRY OUT the Windshield Wiper Motor Test. REFER to component test. TEST the system for normal operation. GO to E2. Measure the resistance between wiper control module C294 Pin 8, Circuit 56 (DB/OG), harness side and ground.

10 Page 10 of 15 GO to E3. E3 CHECK CIRCUIT 56 (DB/OG) FOR OPEN REPAIR Circuit 56 (DB/OG). TEST the system for normal operation. Measure the resistance between wiper control module C294 Pin 8, Circuit 56 (DB/OG), harness side and wiper motor C151 Pin 6, Circuit 56 (DB/OG), harness side. GO to E4. E4 CHECK THE MULTIFUNCTION SWITCH INPUT REPAIR Circuit 56 (DB/OG). TEST the system for normal operation. Turn the multifunction switch (wiper/washer switch) to the LO position. Measure the resistance between wiper control module C294 Pin 7, Circuit 993 (BN/WH), harness side and wiper control module C294 Pin 1, Circuit 589 (OG), harness side. Is the resistance between 3,500 and 4,500 ohms? INSTALL a new wiper control module. REFER to Module Windshield Wiper Control. TEST the system for normal operation. INSTALL a new multifunction switch. REFER to Section TEST the system for normal operation. PINPOINT TEST F: THE INTERMITTENT WIPER SPEED DOES NOT OPERATE CORRECTLY F1 CHECK THE MULTIFUNCTION SWITCH INTERVAL INPUT TO THE WASHER CONTROL MODULE Turn the multifunction switch interval to the INT position. Measure the resistance between wiper control module C294 Pin 7, Circuit 993 (BN/WH), harness side and wiper control module C294 Pin 1, Circuit 589 (OG), harness side.

11 Page 11 of 15 Is the resistance between 10,500 and 12,000 ohms? GO to F2. F2 CHECK THE INTERVAL SETTING INPUT INSTALL a new multifunction switch. REFER to Section TEST the system for normal operation. Turn the multifunction switch to any interval position. Measure the resistance between wiper control module C249 Pin 7, Circuit 993 (BN/WH), harness side and wiper control module C294 Pin 9, Circuit 590 (DB/WH), harness side. Is the resistance between 3,300 and 10,000 ohms? F3 CHECK CIRCUIT 590 (DB/WH) FOR SHORT TO GROUND INSTALL a new wiper control module. REFER to Module Windshield Wiper Control. TEST the system for normal operation. GO to F3. Multifunction Switch C269 Measure the resistance between wiper control module C294 Pin 9, Circuit 590 (DB/WH), harness side and ground. GO to F4. F4 CHECK CIRCUIT 590 (DB/WH) FOR OPEN REPAIR Circuit 590 (DB/WH). TEST the system for normal operation. Measure the resistance between wiper control module C294 Pin 9, Circuit 590 (DB/WH), harness side and multifunction switch C269 Pin 6, Circuit 590 (DB/WH), harness side. INSTALL a new multifunction switch. REFER to Section TEST the system for normal operation. REPAIR Circuit 590 (DB/WH). TEST the system for normal operation.

12 Page 12 of 15 PINPOINT TEST G: THE WIPERS WILL NOT PARK AT THE CORRECT POSITION G1 CHECK CIRCUIT 57 (BK) FOR OPEN Wiper Motor C151 Measure the resistance between wiper motor C151 Pin 4, Circuit 57 (BK), harness side and ground. GO to G2. G2 CHECK THE WIPER MOTOR FOR VOLTAGE CIRCUIT 65 (DG) REPAIR Circuit 57 (BK). TEST the system for normal operation. Measure the voltage between wiper motor C151 Pin 1, Circuit 65 (DG), harness side and ground. Is the voltage greater than 10 volts? GO to G3. G3 CHECK CIRCUIT 63 (RD) FOR OPEN REPAIR Circuit 65 (DG). TEST the system for normal operation. Measure the resistance between wiper control module C294 Pin 13, Circuit 63 (RD), harness side and wiper motor C151 Pin 3, Circuit 63 (RD), harness side.

13 Page 13 of 15 GO to G4. G4 CHECK CIRCUIT 63 (RD) FOR SHORT TO GROUND REPAIR Circuit 63 (RD). TEST the system for normal operation. Measure the resistance between wiper control module C294 Pin 13, Circuit 63 (RD), harness side and ground. GO to G5. G5 CHECK CIRCUIT 28 (BK/PK) FOR OPEN REPAIR Circuit 63 (RD). TEST the system for normal operation. Measure the resistance between wiper control module C294 Pin 6, Circuit 28 (BK/PK), harness side and wiper motor C151 Pin 2, Circuit 28 (BK/PK), harness side. G6 CHECK CIRCUIT 28 (BK/PK) FOR SHORT TO GROUND GO to G6. REPAIR Circuit 28 (BK/PK). TEST the system for normal operation. Measure the resistance between wiper control module C294 Pin 6, Circuit 28 (BK/PK), harness side and ground. INSTALL a new wiper control module. REFER to Module Windshield Wiper Control. TEST the system for normal operation.

14 Page 14 of 15 REPAIR Circuit 28 (BK/PK). TEST the system for normal operation. PINPOINT TEST H: THE WIPERS STAY ON CONTINUOUSLY H1 CHECK CIRCUIT 589 (OG) FOR SHORT TO GROUND Multifunction Switch C269 Measure the resistance between wiper control module C294 Pin 1, Circuit 589 (OG), harness side and ground. H2 CHECK CIRCUIT 993 (BN/WH) FOR SHORT TO GROUND GO to H2. REPAIR Circuit 589 (OG). TEST the system for normal operation. Measure the resistance between wiper control module C294 Pin 7, Circuit 993 (BN/WH), harness side and ground. H3 CHECK THE MULTIFUNCTION SWITCH FOR SHORT TO GROUND RECONNECT the multifunction switch. GO to H3. REPAIR Circuit 993 (BN/WH). TEST the system for normal operation. Turn the multifunction switch to the HI position. Measure the resistance between wiper control module C294 Pin 7, Circuit 993 (BN/WH), harness side and ground.

15 Page 15 of 15 INSTALL a new wiper control module. REFER to Module Windshield Wiper Control. TEST the system for normal operation. INSTALL a new multifunction switch. REFER to Section TEST the system for normal operation. Component Test Windshield Wiper Motor CAUTION: Do not handle the windshield wiper motor abusively when diagnosing the wiper operations. Failure to do so may result in damage to the motor magnets and will make the windshield wiper motor inoperative. Rough handling of a new windshield wiper motor may also damage the motor magnets. Use Alternator, Regulator, and Starter Tester (ARBST) to test the wiper motor on the vehicle. To test the wiper motor, disconnect the wiper mounting arm and pivot shaft from the wiper motor. For additional information, refer to Mounting Arm and Pivot Shaft. Disconnect the wiper motor connector. Connect the (A) green lead from the (B) ARBST to the positive post. Connect the (C) red lead from the tester to the wiper motor (D) common brush Pin 5 component side. Test the low speed mode by connecting a (E) cable from the battery negative post to the low speed brush Pin 6 and measure the current draw. If the current draw is greater than 3.5 amperes, install a new wiper motor. For additional information, refer tomotor Windshield Wiper. Test the high speed mode by connecting a cable from the battery negative post to the (G) high speed brush Pin 7 component side and measure the current draw. If the current draw is greater than 5.5 amperes, install a new wiper motor. For additional information, refer tomotor Windshield Wiper

2003 Crown Victoria/Grand Marquis/Marauder Workshop Manual

Page 1 of 9 SECTION 413-00: Instrument Cluster and Panel Illumination 2003 Crown Victoria/Grand Marquis/Marauder Workshop Manual DIAGNOSIS AND TESTING Procedure revision date: 02/25/2004 Instrument Cluster