I, m replying about the brake warning light.

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1997 CADILLAC DEVILLE
208,019 MILES

I, m replying about the brake warning light staying on it is the red light, I got a code c1241abs brake problem would the abs problem have anything to do with the red warning light, what cause code c1241 show up what can I do to fix that problem too.

Thursday, February 7th, 2013 AT 1:46 PM

1 Reply

HMAC300

MECHANIC
48,601 POSTS

DTC� C1241:� MAGNASTEER� CIRCUIT� MALFUNCTION

1. Perform� diagnostic� system� check.� See DIAGNOSTIC� SYSTEM� CHECK�.� After� performing� diagnostic� system� check, � go� to� next� step.
2. Check� Magnasteer� actuator� connector� and� EBCM/EBTCM� connector� and� wiring� for� damage.� If� connector� or� wiring� is� damaged, � go� to� next� step.� If� connector� or� wiring� is� okay, � go� to� step� 4).
3. Repair� as� necessary.� After� repairs, � perform DIAGNOSTIC� SYSTEM� CHECK�.
4. Disconnect� Magnasteer� actuator� connector.� Using� DVOM, � measure� resistance� between� terminals� of� Magnasteer� actuator.� Actuator� is� located� on� power� steering� rack.� See WIRING� DIAGRAM�.� If� resistance� is
1.6 3.1� ohms, � go� to� next� step.� If� resistance� is� not� 1.6 3.1� ohms, � go� to� step� 6).
5. Using� DVOM, � measure� resistance� between� terminal� "A"� (Gray� wire)� of� Magnasteer� actuator� and� ground.� Also, � using� DVOM, � measure� resistance� between� terminal� "B"� (White� wire)� of� Magnasteer� actuator� and
ground.� See WIRING� DIAGRAM�.� If� resistance� is� infinite� for� both� measurements, � go� to� next� step.� If� resistance� is� not� infinite� for� both� measurements, � go� to� step� 7).
6. Replace� Magnasteer� actuator.� After� repairs, � perform DIAGNOSTIC� SYSTEM� CHECK�.
7. Turn� ignition� off.� Disconnect� EBCM/EBTCM� connector.� Connect� Pinout� Box� (J 39700)� and� Bosch� Adapter� Cable� (J 39700 25)� to� harness� connector.� Using� DVOM, � measure� resistance� between� pinout� box
terminals� "C"� and� "B".� If� resistance� is� infinite, � go� to� next� step.� If� resistance� is� not� infinite, � go� to� step� 9).
8. Repair� short� to� ground� in� Gray� wire� between� actuator� and� EBCM/EBTCM.� After� repairs, � perform DIAGNOSTIC� SYSTEM� CHECK�.
9. Using� DVOM, � measure� resistance� between� pinout� box� terminals� "F"� and� "B".� If� resistance� is� infinite, � go� to� next� step.� If� resistance� is� not� infinite, � go� to� step� 11).
10. Repair� short� to� ground� in� White� wire� between� actuator� and� EBCM/EBTCM.� After� repairs, � perform DIAGNOSTIC� SYSTEM� CHECK�.
11. Reconnect� Magnasteer� actuator� connector.� Using� DVOM, � measure� resistance� between� pinout� box� terminals� "C"� and� "F".� If� resistance� is� 1.6 3.1� ohms, � go� to� step� 17).� If� resistance� is� not� 1.6 3.1� ohms, � go� to� next
step.
12. If� resistance� is� less� than� 1.6 3.1� ohms, � go� to� next� step.� If� resistance� is� greater� than� 1.6 3.1� ohms, � go� to� step� 14).
13. Repair� short� between� White� wire� and� Gray� wire.� After� repairs, � perform DIAGNOSTIC� SYSTEM� CHECK�.
14. Connect� a� fused� jumper� between� pinout� box� terminals� "C"� and� "B".� Disconnect� Magnasteer� actuator� connector.� Using� DVOM, � measure� resistance� between� terminal� "A"� (Gray� wire)� of� Magnasteer� actuator
connector� and� ground.� See WIRING� DIAGRAM�.� If� resistance� is� 0 5� ohms, � go� to� next� step.� If� resistance� is� not� 0 5� ohms, � go� tostep� 16).
15. Repair� open� in� White� wire� between� actuator� and� EBCM/EBTCM.� After� repairs, � perform DIAGNOSTIC� SYSTEM� CHECK�.
16. Repair� open� in� Gray� wire� between� actuator� and� EBCM/EBTCM.� After� repairs, � perform DIAGNOSTIC� SYSTEM� CHECK�.
17. Turn� ignition� on, � with� engine� off.� Using� DVOM, � measure� voltage� at� pinout� box� terminal� "C".� If� voltage� is� greater� than� one� volt, � go� to� next� step.� If� voltage� is� less� than� one� volt, � go� to� step� 19).
18. Repair� short� to� voltage� in� Gray� wire� between� actuator� and� EBCM/EBTCM.� After� repairs, � perform DIAGNOSTIC� SYSTEM� CHECK�.
19. Turn� ignition� on, � with� engine� off.� Using� DVOM, � measure� voltage� at� pinout� box� terminal� "F".� If� voltage� is� greater� than� one� volt, � go� to� next� step.� If� voltage� is� less� than� one� volt, � go� to� step� 21).
20. Repair� short� to� voltage� in� White� wire� between� actuator� and� EBCM/EBTCM.� After� repairs, � perform DIAGNOSTIC� SYSTEM� CHECK�.
21. Replace� EBCM/EBTCM.� After� repairs, � perform DIAGNOSTIC� SYSTEM� CHECK�.