2003 Cruise Contol Problem
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Postmaster
Joined: Dec 2003
Posts: 3,130
Likes: 3
From: Massachusetts
2003 Cruise Contol Problem
I have seached for my specific problem and have not found any information. My 03' cruise control has stopped working. The cruise light illuminates and stays lit but the cruise control never engages. These is no ABS light on.
Were do I begin looking for my problem?
Were do I begin looking for my problem?
FTE Leadership Emeritus
Joined: Jul 2002
Posts: 42,561
Likes: 421
From: Long Island USA
That's weird that the light lites but doesn't do anything. That indicates the brake switch is OK, the master cylinder switch is OK, etc, because the light's coming on.
If you hit the brake, does the light go back off?
Checked my '01 service manual, and it says the first thing to check is the cable is connected to the throttle body. I'd make sure it's moving at all, and not frozen first.
'03 service manual:
https://www.motorcraftservice.com/pu...20/S3OMAIN.HTM
From my '01 manual, here's the order in which to check things:
PINPOINT TEST A: THE SPEED CONTROL IS INOPERATIVE
² A1: CHECK THE SPEED CONTROL CABLE ATTACHMENT TO THE THROTTLE
² A2: CHECK THE VOLTAGE TO THE SPEED CONTROL SERVO
² A3: CHECK THE SPEED CONTROL SERVO GROUND CIRCUIT 57 (BK)
² A4: CHECK FOR BRAKE PEDAL POSITION (BPP) SWITCH INPUT WITH NO BRAKES APPLIED
² A5: CHECK THE BRAKE/CLUTCH CIRCUIT
² A6: CHECK THE DEACTIVATOR SWITCH INPUT TO SPEED CONTROL SERVO
² A7: CHECK THE DEACTIVATOR SWITCH
² A8: CHECK DEACTIVATOR SWITCH POWER
² A9: CHECK FOR STUCK SPEED CONTROL SWITCH
² A10: CHECK THE SPEED CONTROL SWITCH OPERATION
² A11: CHECK CIRCUIT 151 (LB/BK) FOR AN OPEN
² A12: CHECK THE AIR BAG SLIDING CONTACT OR CONTROL AND BRUSH ASSEMBLY FOR AN OPEN
² A13: CHECK THE SET/ACCEL SWITCH
² A14: CHECK CIRCUIT 848 (DG/OG) FOR AN OPEN
² A15: CHECK THE SPEEDOMETER
² A16: CHECK CIRCUIT 676 (PK/OG) (MOTORHOME 1203 [BK/BU]) FOR AN OPEN
² A17: CHECK THE BRAKE PEDAL POSITION (BPP) SWITCH
² A18: CHECK THE SPEED CONTROL SWITCH
² A19: CHECK CIRCUIT 151 (LB/BK) FOR SHORT TO POWER
² A20: CHECK CIRCUIT 810 (RD/LG) FOR AN OPEN
² A21: CHECK CIRCUIT 306 (TN/LB) FOR AN OPEN
² A22: CHECK THE CLUTCH PEDAL POSITION (CPP) SWITCH
² A23: CHECK BRAKE PEDAL POSITION (BPP) SWITCH INPUT CIRCUITRY FOR SHORT TO POWER
² A24: CHECK THE SPEED CIRCUITRY FOR AN OPEN
² A25: CHECK THE SPEED CONTROL INDICATOR CIRCUITRY FOR AN OPEN
² A26: CHECK THE CIRCUIT 306 (TN/LB) FOR SHORT TO POWER
² A27: CHECK CIRCUIT 810 (RD/LG) FOR SHORT TO POWER
If you hit the brake, does the light go back off?
Checked my '01 service manual, and it says the first thing to check is the cable is connected to the throttle body. I'd make sure it's moving at all, and not frozen first.
'03 service manual:
https://www.motorcraftservice.com/pu...20/S3OMAIN.HTM
From my '01 manual, here's the order in which to check things:
PINPOINT TEST A: THE SPEED CONTROL IS INOPERATIVE
² A1: CHECK THE SPEED CONTROL CABLE ATTACHMENT TO THE THROTTLE
² A2: CHECK THE VOLTAGE TO THE SPEED CONTROL SERVO
² A3: CHECK THE SPEED CONTROL SERVO GROUND CIRCUIT 57 (BK)
² A4: CHECK FOR BRAKE PEDAL POSITION (BPP) SWITCH INPUT WITH NO BRAKES APPLIED
² A5: CHECK THE BRAKE/CLUTCH CIRCUIT
² A6: CHECK THE DEACTIVATOR SWITCH INPUT TO SPEED CONTROL SERVO
² A7: CHECK THE DEACTIVATOR SWITCH
² A8: CHECK DEACTIVATOR SWITCH POWER
² A9: CHECK FOR STUCK SPEED CONTROL SWITCH
² A10: CHECK THE SPEED CONTROL SWITCH OPERATION
² A11: CHECK CIRCUIT 151 (LB/BK) FOR AN OPEN
² A12: CHECK THE AIR BAG SLIDING CONTACT OR CONTROL AND BRUSH ASSEMBLY FOR AN OPEN
² A13: CHECK THE SET/ACCEL SWITCH
² A14: CHECK CIRCUIT 848 (DG/OG) FOR AN OPEN
² A15: CHECK THE SPEEDOMETER
² A16: CHECK CIRCUIT 676 (PK/OG) (MOTORHOME 1203 [BK/BU]) FOR AN OPEN
² A17: CHECK THE BRAKE PEDAL POSITION (BPP) SWITCH
² A18: CHECK THE SPEED CONTROL SWITCH
² A19: CHECK CIRCUIT 151 (LB/BK) FOR SHORT TO POWER
² A20: CHECK CIRCUIT 810 (RD/LG) FOR AN OPEN
² A21: CHECK CIRCUIT 306 (TN/LB) FOR AN OPEN
² A22: CHECK THE CLUTCH PEDAL POSITION (CPP) SWITCH
² A23: CHECK BRAKE PEDAL POSITION (BPP) SWITCH INPUT CIRCUITRY FOR SHORT TO POWER
² A24: CHECK THE SPEED CIRCUITRY FOR AN OPEN
² A25: CHECK THE SPEED CONTROL INDICATOR CIRCUITRY FOR AN OPEN
² A26: CHECK THE CIRCUIT 306 (TN/LB) FOR SHORT TO POWER
² A27: CHECK CIRCUIT 810 (RD/LG) FOR SHORT TO POWER
Hotshot
Joined: Jan 2004
Posts: 19,760
Likes: 1,079
From: St Louis
Perform from the 03 F-SD Workhsop manual:
Self-Test Diagnostics
WARNING: This test is a key on engine off (KOEO) test only that is conducted in PARK only with the emergency brake fully engaged.
Enter the Self-Test Diagnostics by depressing the speed control OFF switch while turning the ignition key ON, making sure the engine does not start and is not running. The speed control indicator on the instrument panel will flash once to indicate that speed control module entered the diagnostic mode. Five additional flashes at this point indicate a defective speed control servo. Release the OFF switch.
Press the remaining switches in this sequence: ON, RESUME, COAST and SET/ACCEL.
If the "ON" switch is not depressed within five seconds after entering the diagnostic mode, the module times out and the procedure must be started over.
The speed control indicator lamp will flash as each switch is depressed. Press each switch in the sequence immediately after the indicator light goes out for the previous switch.
NOTE: There will be a slight delay when the last button is pressed and the lamp flashes.
A lamp flash with the last button (SET/ACCEL) indicates that the STATIC test passed. If the lamp does not flash with the last button and there are no additional flashes of the lamp, the switch is defective.
If the lamp does not flash with the last button, and additional flashes occur, follow the chart below for trouble codes:
Flashes Source
2 Flashes BPP defective, circuit is defective, brake applied, CPP switch or jumper (if equipped) is defective
3 Flashes Deactivator switch is open or circuit defective
4 Flashes Vehicle speed signal is out of range or circuit is defective
Immediately after the STATIC test, the speed control servo does a DYNAMIC test by automatically actuating the throttle lever from 8 mm (0.315 in) to 12 mm (0.472 in) of travel from the idle position. During the DYNAMIC throttle pull, observe throttle movement to witness any binding or sticking of the speed control cable and correct connection of speed control cable to throttle lever. Make sure the throttle returns back to the idle position.
Return the ignition switch to the OFF position and proceed to the Symptom Chart.
WARNING: This test is a key on engine off (KOEO) test only that is conducted in PARK only with the emergency brake fully engaged.
Enter the Self-Test Diagnostics by depressing the speed control OFF switch while turning the ignition key ON, making sure the engine does not start and is not running. The speed control indicator on the instrument panel will flash once to indicate that speed control module entered the diagnostic mode. Five additional flashes at this point indicate a defective speed control servo. Release the OFF switch.
Press the remaining switches in this sequence: ON, RESUME, COAST and SET/ACCEL.
If the "ON" switch is not depressed within five seconds after entering the diagnostic mode, the module times out and the procedure must be started over.
The speed control indicator lamp will flash as each switch is depressed. Press each switch in the sequence immediately after the indicator light goes out for the previous switch.
NOTE: There will be a slight delay when the last button is pressed and the lamp flashes.
A lamp flash with the last button (SET/ACCEL) indicates that the STATIC test passed. If the lamp does not flash with the last button and there are no additional flashes of the lamp, the switch is defective.
If the lamp does not flash with the last button, and additional flashes occur, follow the chart below for trouble codes:
Flashes Source
2 Flashes BPP defective, circuit is defective, brake applied, CPP switch or jumper (if equipped) is defective
3 Flashes Deactivator switch is open or circuit defective
4 Flashes Vehicle speed signal is out of range or circuit is defective
Immediately after the STATIC test, the speed control servo does a DYNAMIC test by automatically actuating the throttle lever from 8 mm (0.315 in) to 12 mm (0.472 in) of travel from the idle position. During the DYNAMIC throttle pull, observe throttle movement to witness any binding or sticking of the speed control cable and correct connection of speed control cable to throttle lever. Make sure the throttle returns back to the idle position.
Return the ignition switch to the OFF position and proceed to the Symptom Chart.
