What Does C1219 Mean?
The ABS module has detected an open circuit in the ABS warning lamp output circuit. This means the module cannot illuminate the ABS warning lamp on the instrument cluster because the electrical path is broken. As a result, the driver will NOT see the ABS light when ABS faults are present, which is a significant safety concern since other ABS issues could go undetected.
Common Causes
35%
Open wire in the harness between the ABS module lamp output and the instrument cluster ABS lamp circuit
25%
Burned-out ABS warning lamp bulb or failed LED in the instrument cluster
20%
Backed-out or corroded terminal pin at the ABS module or instrument cluster connector for the lamp circuit
10%
Instrument cluster internal circuit board fault on the ABS lamp driver
10%
ABS module internal open on the lamp output driver transistor
Diagnostic Steps
1
Turn the ignition to ON (engine off). During the bulb check, all warning lamps should illuminate briefly. Note whether the ABS lamp lights at all. If not, the bulb or cluster circuit may be faulty.
2
Access the instrument cluster connector and check for voltage/ground on the ABS lamp circuit pin. The ABS module typically provides a ground path to turn the lamp on. Use the wiring diagram to identify the correct pin.
3
Disconnect the ABS module connector and use a jumper wire to ground the lamp output wire at the ABS module harness connector. If the ABS lamp illuminates, the harness and cluster are good, and the ABS module lamp driver is at fault.
4
If the lamp does not illuminate with the jumper, trace the wire from the ABS module connector to the cluster connector for an open circuit. Check all inline connectors and splices.
5
If the harness is intact, remove the cluster and test the ABS lamp bulb or LED. Replace the bulb or repair the cluster as needed.
Estimated Repair Cost
$30 - $500
Parts + labor, varies by vehicle and location
The ABS module has detected an open circuit in the ABS warning lamp output circuit. This means the module cannot illuminate the ABS warning lamp on the instrument cluster because the electrical path is broken. As a result, the driver will NOT see the ABS light when ABS faults are present, which is a...
The most common cause of C1219 (Lamp ABS Warning Output Circuit Open) is: Open wire in the harness between the ABS module lamp output and the instrument cluster ABS lamp circuit
Typical repair costs for C1219 range from $30 to $500, depending on the vehicle, location, and whether you do it yourself or go to a shop.
This is a deceptive fault. The ABS system itself may or may not be functioning, but the warning lamp cannot alert the driver to any ABS problems. Other critical ABS faults could exist without any dashboard indication. This should be repaired to restore the safety warning system.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to C1219 to identify the root cause.
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Quick Info
Category
Chassis
System
ABS / Traction Control
Difficulty
Type
Manufacturer
Recommended Tools
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