Section 11-05: Steering Column Switches
DIAGNOSIS AND TESTING
Switch Continuity
1993 Bronco/Econoline/F-Series Workshop Manual
Testing for electrical malfunctions can be accomplished using a continuity tester and ohmmeter, such as Rotunda Digital Volt-Ohmmeter 007-00001, or equivalent.
Diagnosis Guides, Multi-Function Switch
MECHANICAL MULTI-FUNCTION SWITCH DIAGNOSIS GUIDES
ConditionPossible Source Action
Hazard warning switch will not turn on warning lamps.
Hazard warning switch will not turn off warning lamps.
Turn signal lever will not stay in the left or right turn position.
Turn signal lever cancels before steering wheel returns from the desired turn position.
Turn signal lever will not cancel when steering wheel returns from the desired turn position.
Headlamp dimmer switch does not stop in LOWBEAM position after the flash-topass function is operated.
Headlamp dimmer switch does not return to LOWBEAM position after the flash-to-pass function is operated.
Worn or damaged switch.
Worn or damaged switch.
Worn or damaged switch.
Worn or damaged switch.
Worn or damaged switch.
Worn or damaged switch.
Worn or damaged switch.
Turn signal lever is loose. Worn or damaged switch.
Windshield washer switch knob does not return from the WASH position.
Worn or damaged switch.
Verify that the shroud does not restrict knob movement. With hazard warning switch in the OFF position, fully depress the knob and release. If the knob does not pop up to the ON position, the switch is damaged or worn. Replace the switch, refer tomulti-function switch removal and installation procedures in this section.
Verify that the shroud does not restrict knob movement. With hazard warning switch in the ON position, fully depress the knob and release. If the knob does not pop up to the OFF position, the switch is damaged or worn. Replace the switch, refer tomulti-function switch removal and installation procedures in this section.
With the steering wheel locked in the straight-ahead position, move the lever to the right and left turn positions. If the lever does not stay in either turn position, the switch is worn or damaged. Replace the switch, refer to multifunction switch removal and installation procedures in this section. If the lever stays in either turn position, but requires an effort to manually move the switch from the turn position back to the neutral position, the switch is damaged. Replace the switch, refer tomulti-function switch removal and installation procedures in this section.
Road test the vehicle.
NOTE: A slight movement of the steering wheel in the return direction causes the switch to cancel.
If the lever cancels before the steering wheel returns, the switch is worn or damaged. Replace the switch, refer to multi-function switch removal and installation procedures in this section.
Road test the vehicle. Verify that the switch is mounted properly to the casting. Verify that the cancel cam on the steering column is in the correct location. If the lever does not cancel, the switch is worn or damaged. Replace the switch, refer tomulti-function switch removal and installation procedures in this section.
Gently pull the turn signal lever to the FLASH-TO-PASS position and release. If the lever stops in the LOWBEAM position, the switch is good. If the lever travels beyond the LOWBEAM position, the switch is worn or damaged. Replace the switch, refer to multi-function switch removal and installation procedures in this section.
Gently pull the turn signal lever to the FLASH-TO-PASS position and release. If the lever does not return to the LOWBEAM position, the switch is worn or damaged. Replace the switch, refer to multi-function switch removal and installation procedures in this section.
Verify that the mounting screws are tight. Move the turn signal from LOWBEAM to HIGHBEAM and back to LOWBEAM. If looseness is felt in the lever, the switch is worn or damaged. Replace the switch, refer to multifunction switch removal and installation procedures in this section.
With the ignition lock cylinder in the OFF position, push the washer switch knob to the ON position. If the washer knob does not return to the OFF position, the switch is worn or damaged. Replace the switch, refer to multifunction switch removal and installation procedures in this section.
Pinpoint Test Index
Description Test
Multi-function Switch, Bench Check (F-Series, Bronco) Test A
Multi-function Switch, Bench Check (Econoline) Test B
Ignition Switch Electrical Test Test C
Ignition Switch Electrical Test (F/B) Econoline Test D
MULTI-FUNCTION SWITCH, BENCH CHECK (F-SERIES, BRONCO) — TEST A
NOTE: Resistance values are accurate to within ± 15%.
A1 CONTINUITY CHECK, SIGNAL LEVER IN NEUTRAL, HAZARD OFF
Place the turn signal lever in neutral.
Turn the hazard switch OFF.
Check for continuity between Circuit 511 and Circuits 5 and 9.
Do circuits check as indicated?
Yes GO to A2
REPLACE switch. REFER to multi-function switch removal and installation procedures in this section.
A2 OPEN CIRCUIT CHECK, SIGNAL LEVER IN NEUTRAL, HAZARD OFF
Place the turn signal lever in neutral.
Turn the hazard switch OFF.
Check for open circuit between Circuit 511 and Circuits 2 and 3.
Check for open circuit between Circuit 44 and Circuits 2, 3, 5 and 9.
Do circuits check as indicated? Yes GO to A3 . No
REPLACE switch. REFER to multi-function switch removal and installation procedures in this section.
A3 CONTINUITY CHECK, SIGNAL LEVER IN LEFT TURN, HAZARD OFF
Place the turn signal lever in left turn.
Turn the hazard switch OFF.
Check for continuity between Circuit 511 and Circuit 5.
Check for continuity between Circuit 44 and Circuits 3 and 9.
Check for continuity between Circuit 15 and Circuit 380.
Do circuits check as indicated? Yes GO to A4 No
REPLACE switch. REFER to multi-function switch removal and installation procedures in this section.
A4 OPEN CIRCUIT CHECK, SIGNAL LEVER IN LEFT TURN, HAZARD OFF
Place the turn signal lever in left turn.
Turn the hazard switch OFF.
Check for open circuit between Circuit 511 and Circuits 2, 3 and 9.
Check for open circuit between Circuit 44 and Circuits 2 and 5.
Do circuits check as indicated? Yes GO to A5 No
REPLACE switch. REFER to multi-function switch removal and installation procedures in this section.
A5 CONTINUITY CHECK, SIGNAL LEVER IN RIGHT TURN, HAZARD OFF
Place the turn signal lever in right turn.
Turn the hazard switch OFF.
Check for continuity between Circuit 511 and Circuit 9.
Check for continuity between Circuit 44 and Circuits 2 and 5.
Check for continuity between Circuit 15 and Circuit 379.
Do circuits check as indicated?
Yes GO to A6 No
REPLACE switch. REFER to multi-function switch removal and installation procedures in this section.
A6 OPEN CIRCUIT CHECK, SIGNAL LEVER IN RIGHT TURN, HAZARD OFF
Place the turn signal lever in right turn.
Turn the hazard switch OFF.
Check for open circuit between Circuit 511 and Circuits 2, 3 and 5.
Check for open circuit between Circuit 44 and Circuits 3 and 9.
Do circuits check as indicated?
Yes GO to A7 No
REPLACE switch. REFER to multi-function switch removal and installation procedures in this section.
A7 CONTINUITY CHECK, HAZARD ON
Turn the hazard switch ON.
Check for continuity between Circuit 385 and Circuits 2, 3, 5 and 9.
Do circuits check as indicated? Yes GO to A8 No
REPLACE switch. REFER to multi-function switch removal and installation procedures in this section.
A8 OPEN CIRCUIT CHECK, HAZARD ON
Turn the hazard switch ON.
Check for open circuit between Circuit 44 and Circuit 511.
Check for open circuit between Circuit 385 and Circuits 44 and 511.
Do circuits check as indicated?
Yes GO to A9 No
REPLACE switch. REFER to multi-function switch removal and installation procedures in this section.
A9 CONTINUITY CHECK, HEADLAMP BEAM SWITCH, HIGH BEAMS
Place the lever on HIGH beams.
Check for continuity between Circuit 15 and Circuit 12.
Do circuits check as indicated?
Yes GO to A10 No
REPLACE switch. REFER to multi-function switch removal and installation procedures in this section.
A10 OPEN CIRCUIT CHECK, HEADLAMP BEAM SWITCH, HIGH BEAMS
Place the lever on HIGH beams.
Check for open circuit between Circuit 15 and Circuits 13 and 196.
Do circuits check as indicated?
Yes GO to A11 . No
REPLACE switch. REFER to multi-function switch removal and installation procedures in this section.
A11 CONTINUITY CHECK, HEADLAMP BEAM SWITCH, LOW BEAMS
Place the lever on LOW beams.
Check for continuity between Circuit 15 and Circuit 13.
Do circuits check as indicated? Yes GO to A12 No
REPLACE switch. REFER to multi-function switch removal and installation procedures in this section.
A12 OPEN CIRCUIT CHECK, HEADLAMP BEAM SWITCH, LOW BEAMS
Place the lever on LOW beams.
Check for open circuit between Circuits 15 and 12.
Check for open circuit between Circuit 196 and Circuits 12 and 13.
Do circuits check as indicated? Yes
GO to A13
No
REPLACE switch. REFER to multi-function switch removal and installation procedures in this section.
A13 CONTINUITY CHECK, HEADLAMP BEAM SWITCH, FLASH-TO-PASS
Place the lever on flash-to-pass.
Check for continuity between Circuit 15 and Circuit 13.
Check for continuity between Circuit 196 and Circuit 12.
Do circuits check as indicated?
Yes GO to A14 . No
REPLACE switch. REFER to multi-function switch removal and installation procedures in this section.
A14 OPEN CIRCUIT CHECK, HEADLAMP BEAM SWITCH, FLASH-TO-PASS
Place the lever on flash-to-pass.
Check for open circuit between Circuit 15 and Circuit 12.
Do circuits check as indicated?
Yes GO to A15
No
REPLACE switch. REFER to multi-function switch removal and installation procedures in this section.
A15 OPEN CIRCUIT CHECK, WIPER/WASHER SWITCH, WASH OFF
Turn the washer OFF.
Check for open circuit between Circuit 993 and Circuit 590.
Do circuits check as indicated? Yes GO to A16 No
REPLACE switch. REFER to multi-function switch removal and installation procedures in this section.
A16 CONTINUITY CHECK, WIPER/WASHER SWITCH, WASH ON
Turn the washer on.
Check for continuity between Circuit 993 and Circuit 590.
Do circuits check as indicated?
Yes GO to A17 .
REPLACE switch. REFER to multi-function switch removal and installation procedures in this section.
A17 OPEN CIRCUIT/RESISTANCE CHECK, WIPER/WASHER SWITCH, WIPER OFF, WASH OFF
Turn the wiper OFF.
Turn the washer OFF.
Check for open circuit between Circuit 589 and Circuit 590.
Measure resistance between Circuit 993 and Circuit 590. The correct resistance is approximately 103,300 ohms.
Measure the resistance between Circuit 993 and 589. The correct resistance is approximately 47,600 ohms.
Do circuits check as indicated?
Yes GO to A18
No
REPLACE switch. REFER to multi-function switch removal and installation procedures in this section.
A18 OPEN CIRCUIT/RESISTANCE CHECK, WIPER/WASHER SWITCH, WIPER LOW, WASH OFF
Turn the wiper on LOW.
Turn the washer OFF.
Check for open circuit between Circuit 589 and Circuit 590.
Measure resistance between Circuit 993 and Circuit 590. The correct resistance is approximately 3,300 ohms.
Measure the resistance between Circuit 993 and Circuit 589. The correct resistance is approximately 4,100 ohms.
Do circuits check as indicated?
Yes GO to A19 No
REPLACE switch. REFER to multi-function switch removal and installation procedures in this section.
A19 CONTINUITY CHECK, WIPER/WASHER SWITCH, WIPER HIGH, WASH OFF
Turn the wiper on HIGH.
Turn the washer OFF.
Check for continuity between Circuit 993 and Circuit 589.
Measure resistance between Circuit 993 and Circuit 590. The correct resistance is approximately 3,300 ohms.
Do circuits check as indicated?
Yes GO to A20 No
REPLACE switch. REFER to multi-function switch removal and installation procedures in this section.
A20 OPEN CIRCUIT CHECK, WIPER/WASHER SWITCH, WIPER HIGH, WASH OFF
Turn the wiper on HIGH.
Turn the washer OFF.
Check for open circuit between Circuit 589 and Circuit 590.
Do circuits check as indicated?
Yes GO to A21
No
REPLACE switch. REFER to multi-function switch removal and installation procedures in this section.
A21 OPEN CIRCUIT/RESISTANCE CHECK, WIPER/WASHER SWITCH, INTERVAL AT MAXIMUM DELAY
Turn the wiper interval delay to the maximum setting.
Check for open circuit between Circuit 589 and Circuit 590.
Measure resistance between Circuit 993 and Circuit 590. The correct resistance is approximately 103,300 ohms.
Measure resistance between Circuit 993 and Circuit 589. The correct resistance is approximately 11,300 ohms.
Do circuits check as indicated?
Yes GO to A22
No
REPLACE switch. REFER to multi-function switch removal and installation procedures in this section.
A22 OPEN CIRCUIT/RESISTANCE CHECK, WIPER/WASHER SWITCH, INTERVAL AT MINIMUM DELAY
Turn the wiper interval delay to the minimum setting.
Check for open circuit between Circuit 589 and Circuit 590.
Measure resistance between Circuit 993 and Circuit 590. The correct resistance is approximately 3,300 ohms.
Measure the resistance between Circuit 993 and Circuit 589. The correct resistance is approximately 11,300 ohms.
Do circuits check as indicated?
Yes
The switch is OK. RETURN to service.
No
REPLACE switch. REFER to multi-function switch removal and installation procedures in this section.
Multi-Function Switch, F-Series and Bronco
MULTI-FUNCTION SWITCH, BENCH CHECK (ECONOLINE) — TEST B
NOTE: Resistance values are accurate to within ± 15%.
B1 CONTINUITY CHECK, SIGNAL LEVER IN NEUTRAL, HAZARD OFF
Place the turn signal lever in neutral.
Turn the hazard switch OFF.
Check for continuity between Circuit 511 and Circuits 5 and 9.
Check for continuity between Circuit 49 and Ignition (IGN).
Do circuits check as indicated? Yes GO to B2 No
REPLACE switch. REFER to multi-function switch removal and installation procedures in this section.
B2 OPEN CIRCUIT CHECK, SIGNAL LEVER IN NEUTRAL, HAZARD OFF
Place the turn signal lever in neutral.
Turn the hazard switch OFF.
Check for open circuit between Circuit 511 and Circuits 2 and 3.
Check for open circuit between Circuit 44 and Circuits 2, 3, 5 and 9.
Do circuits check as indicated?
Yes GO to B3 . No
REPLACE switch. REFER to multi-function switch removal and installation procedures in this section.
B3 CONTINUITY CHECK, SIGNAL LEVER IN LEFT TURN, HAZARD OFF
Place the turn signal lever in left turn.
Turn the hazard switch OFF.
Check for continuity between Circuit 511 and Circuit 5.
Check for continuity between Circuit 44 and Circuits 3 and 9.
Check for continuity between Circuit 15 and Circuit 380.
Check for continuity between Circuit 49 and IGN.
Do circuits check as indicated?
Yes GO to B4
No
REPLACE switch. REFER to multi-function switch removal and installation procedures in this section.
B4 OPEN CIRCUIT CHECK, SIGNAL LEVER IN LEFT TURN, HAZARD OFF
Place the turn signal lever in left turn.
Turn the hazard switch OFF.
Check for open circuit between Circuit 511 and Circuits 2, 3 and 9.
Check for open circuit between Circuit 44 and Circuits 2 and 5.
Do circuits check as indicated?
Yes GO to B5 No
REPLACE switch. REFER to multi-function switch removal and installation procedures in this section.
B5 CONTINUITY CHECK, SIGNAL LEVER IN RIGHT TURN, HAZARD OFF
Place the turn signal lever in right turn.
Turn the hazard switch OFF.
Check for continuity between Circuit 511 and Circuit 9.
Check for continuity between Circuit 44 and Circuits 2 and 5.
Check for continuity between Circuit 15 and Circuit 379.
Check for continuity between Circuit 49 and IGN.
Do circuits check as indicated?
Yes GO to B6 . No
REPLACE switch. REFER to multi-function switch removal and installation procedures in this section.
B6 OPEN CIRCUIT CHECK, SIGNAL LEVER IN RIGHT TURN, HAZARD OFF
Place the turn signal lever in right turn.
Turn the hazard switch OFF.
Check for open circuit between Circuit 511 and Circuits 2, 3 and 5.
Check for open circuit between Circuit 44 and Circuits 3 and 9.
Do circuits check as indicated? Yes GO to B7 . No
REPLACE switch. REFER to multi-function switch removal and installation procedures in this section.
B7 CONTINUITY CHECK, HAZARD ON
Turn the hazard switch ON.
Check for continuity between Circuit 44 and Circuits 2, 3, 5 and 9.
Check continuity between Circuit 49 and battery.
Do circuits check as indicated?
Yes GO to B8 No
REPLACE switch. REFER to multi-function switch removal and installation procedures in this section.
B8 OPEN CIRCUIT CHECK, HAZARD ON
Turn the hazard switch ON.
Check for open circuit between Circuit 44 and Circuit 511 and battery (B+).
Check for open circuit between Circuit 49 and Circuit 3 and IGN.
Do circuits check as indicated? Yes GO to B9
REPLACE switch. REFER to multi-function switch removal and installation procedures in this section.
B9 CONTINUITY CHECK, HEADLAMP BEAM SWITCH, HIGH BEAMS
Place the lever on HIGH beams.
Check for continuity between Circuit 15 and Circuit 12.
Do circuits check as indicated?
Yes GO to B10 No
REPLACE switch. REFER to multi-function switch removal and installation procedures in this section.
B10 OPEN CIRCUIT CHECK, HEADLAMP BEAM SWITCH, HIGH BEAMS
Place the lever on HIGH beams.
Check for open circuit between Circuit 15 and Circuits 13 and 196.
Do circuits check as indicated?
Yes GO to B11 No
REPLACE switch. REFER to multi-function switch removal and installation procedures in this section.
B11 CONTINUITY CHECK, HEADLAMP BEAM SWITCH, LOW BEAMS
Place the lever on LOW beams.
Check for continuity between Circuit 15 and Circuit 13.
Do circuits check as indicated? Yes GO to B12 No
REPLACE switch. REFER to multi-function switch removal and installation procedures in this section.
B12 OPEN CIRCUIT CHECK, HEADLAMP BEAM SWITCH, LOW BEAMS
Place the lever on LOW beams.
Check for open circuit between Circuit 15 and Circuit 12.
Check for open circuit between Circuit 196 and Circuits 12 and 13.
Do circuits check as indicated? Yes GO to B13 No
REPLACE switch. REFER to multi-function switch removal and installation procedures in this section.
B13 CONTINUITY CHECK, HEADLAMP BEAM SWITCH, FLASH-TO-PASS
Place the lever on flash-to-pass.
Check for continuity between Circuit 15 and Circuit 13.
Check for continuity between Circuit 196 and Circuit 12.
Do circuits check as indicated?
Yes GO to B14 No
REPLACE switch. REFER to multi-function switch removal and installation procedures in this section.
B14 OPEN CIRCUIT CHECK, HEADLAMP BEAM SWITCH, FLASH-TO-PASS
Place the lever on flash-to-pass.
Check for open circuit between Circuit 15 and Circuit 12.
Do circuits check as indicated?
Yes GO to B15 .
No
REPLACE switch. REFER to multi-function switch removal and installation procedures in this section.
B15 OPEN CIRCUIT CHECK, WIPER/WASHER SWITCH, WASH OFF
Turn the washer OFF.
Check for open circuit between Circuit 993 and Circuit 590.
Do circuits check as indicated?
Yes GO to B16 No
REPLACE switch. REFER to multi-function switch removal and installation procedures in this section.
B16 CONTINUITY CHECK, WIPER/WASHER SWITCH, WASH ON
Turn the washer on.
Check for continuity between Circuit 993 and Circuit 590.
Do circuits check as indicated?
Yes GO to B17 No
REPLACE switch. REFER to multi-function switch removal and installation procedures in this section.
B17 OPEN CIRCUIT/RESISTANCE CHECK, WIPER/WASHER SWITCH, WIPER OFF, WASH OFF
Turn the wiper OFF.
Turn the washer OFF.
Check for open circuit between Circuit 589 and Circuit 590.
Measure resistance between Circuit 993 and Circuit 590. The correct resistance is approximately 103,300 ohms.
Measure the resistance between Circuit 993 and Circuit 589. The correct resistance is approximately 47,600 ohms.
Do circuits check as indicated?
Yes GO to B18 . No
REPLACE switch. REFER to multi-function switch removal and installation procedures in this section.
B18 OPEN CIRCUIT/RESISTANCE CHECK, WIPER/WASHER SWITCH, WIPER LOW, WASH OFF
Turn the wiper on LOW.
Turn the washer OFF.
Check for open circuit between Circuit 589 and Circuit 590.
Measure resistance between Circuit 993 and Circuit 590. The correct resistance is approximately 3,300 ohms.
Measure the resistance between Circuit 993 and Circuit 589. The correct resistance is approximately 4,100 ohms.
Do circuits check as indicated?
Yes GO to B19 No
REPLACE switch. REFER to multi-function switch removal and installation procedures in this section.
B19 CONTINUITY CHECK, WIPER/WASHER SWITCH, WIPER HIGH, WASH OFF
Turn the wiper on HIGH.
Turn the washer OFF.
Check for continuity between Circuit 993 and Circuit 589.
Measure resistance between Circuit 993 and Circuit 590. The correct resistance is approximately 3,300 ohms.
Do circuits check as indicated?
Yes GO to B20 No
REPLACE switch. REFER to multi-function switch removal and installation procedures in this section.
B20 OPEN CIRCUIT CHECK, WIPER/WASHER SWITCH, WIPER HIGH, WASH OFF
Turn the wiper on HIGH.
Turn the washer OFF.
Check for open circuit between Circuit 589 and Circuit 590.
Do circuits check as indicated?
Yes GO to B21
No
REPLACE switch. REFER to multi-function switch removal and installation procedures in this section.
B21 OPEN CIRCUIT/RESISTANCE CHECK, WIPER/WASHER SWITCH, INTERVAL AT MAXIMUM DELAY
Turn the wiper interval delay to the maximum setting.
Check for open circuit between Circuit 589 and Circuit 590.
Measure resistance between Circuit 993 and Circuit 590. The correct resistance is approximately 103,300 ohms.
Measure resistance between Circuit 993 and Circuit 589. The correct resistance is approximately 11,300 ohms.
Do circuits check as indicated?
Yes GO to B22
No
REPLACE switch. REFER to multi-function switch removal and installation procedures in this section.
B22 OPEN CIRCUIT/RESISTANCE CHECK, WIPER/WASHER SWITCH, INTERVAL AT MINIMUM DELAY
Turn the wiper interval delay to the minimum setting.
Check for open circuit between Circuit 589 and Circuit 590.
Measure resistance between Circuit 993 and Circuit 590. The correct resistance is approximately 3,300 ohms.
Measure the resistance between Circuit 993 and Circuit 589. The correct resistance is approximately 11,300 ohms.
Do circuits check as indicated?
Yes
The switch is OK. RETURN to service. No
REPLACE switch. REFER to multi-function switch removal and installation procedures in this section.
Multi-Function Switch, Econoline
