What Does C1508 Mean?
The traction control system's engine-based intervention has exceeded its maximum time-out limit. When wheel spin is detected, the traction control can reduce engine power via throttle reduction, ignition timing retard, or fuel cut to regain traction. If this intervention runs continuously for too long, the system times out to prevent drivability issues or engine damage. The driver may have experienced a prolonged low-traction situation, and the traction control indicator will be illuminated.
Common Causes
35%
Extended driving on very low-traction surfaces requiring continuous engine power reduction
25%
Mismatched tire sizes causing persistent apparent wheel speed differences
20%
Erratic wheel speed sensor signal falsely triggering continuous engine intervention
10%
Throttle body or electronic throttle control responding incorrectly to traction commands
10%
Traction control module or engine control module communication fault
Diagnostic Steps
1
Review freeze frame data to determine the conditions when the time-out occurred — check vehicle speed, wheel speeds, throttle position, and engine RPM to distinguish between legitimate low-traction events and sensor-driven false triggers.
2
Verify all four tires are the same size, type, and within 2/32" tread depth of each other. Use a tire pressure gauge to confirm all tires are at the specified inflation pressure.
3
Monitor all four wheel speed sensors during a test drive — compare readings and look for any sensor showing erratic behavior, dropout, or significant deviation from the others.
4
Check the throttle body and electronic throttle control for proper response — command the throttle through the scan tool and verify smooth, proportional movement.
5
Check for communication DTCs between the ABS/DSC module and the engine control module on the CAN bus. A delayed or missing response from either module can cause the time-out.
6
Clear the code and drive normally. If it returns without extreme conditions, focus on wheel speed sensors and tire matching.
Estimated Repair Cost
$0 - $600
Parts + labor, varies by vehicle and location
The traction control system's engine-based intervention has exceeded its maximum time-out limit. When wheel spin is detected, the traction control can reduce engine power via throttle reduction, ignition timing retard, or fuel cut to regain traction. If this intervention runs continuously for too lo...
The most common cause of C1508 (Traction Control of Engine Exceeds Time-Out) is: Extended driving on very low-traction surfaces requiring continuous engine power reduction
Typical repair costs for C1508 range from $0 to $600, depending on the vehicle, location, and whether you do it yourself or go to a shop.
The traction control engine intervention has temporarily shut off. The vehicle retains normal braking, ABS, and full engine power. The only loss is the engine-side traction control feature, which will typically reset after an ignition cycle. If this only occurred during extreme low-traction driving, it is likely a normal protective response. Safe to drive but with reduced traction assistance.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to C1508 to identify the root cause.
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Quick Info
Category
Chassis
System
ABS / Traction Control
Difficulty
Type
Manufacturer
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