What Does C0141 Mean?
This code indicates the ABS/Traction Control System (TCS) module has detected an electrical circuit fault with the left front traction control solenoid valve #1. The module detected an abnormal voltage, current draw, or resistance in the solenoid circuit that falls outside expected parameters. This prevents proper operation of the traction control system's ability to modulate brake pressure to the left front wheel during wheel slip events.
Common Causes
45%
Damaged wiring harness or corroded/loose connector pins between ABS module and left front TCS solenoid valve
30%
Failed left front TCS solenoid valve with internal short or open circuit
15%
Corroded or damaged ground connection for the TCS solenoid circuit
10%
Internal failure of the ABS/TCS control module solenoid driver circuit
Diagnostic Steps
1
Step 1: Perform visual inspection of the left front wheel speed sensor area and ABS modulator unit. Check wiring harness for physical damage, chafing, or evidence of water intrusion. Inspect connector at TCS solenoid for corrosion, bent pins, or moisture.
2
Step 2: Using a digital multimeter, measure resistance of the left front TCS solenoid valve. Disconnect the solenoid connector and measure across solenoid terminals. Compare reading to manufacturer specifications (typically 2-6 ohms). An open circuit (infinite resistance) or short (near zero ohms) indicates solenoid failure.
3
Step 3: With solenoid disconnected, check for voltage supply at the harness connector with ignition on. Verify ground circuit continuity by measuring resistance from ground pin to battery negative (should be less than 1 ohm). Check for voltage on control wire during active test using scan tool TCS function test.
4
Step 4: If wiring and solenoid test within specifications, perform solenoid actuation test using bi-directional controls in scan tool. Listen/feel for solenoid clicking at ABS modulator. If no actuation occurs with good solenoid and wiring, suspect ABS module internal failure.
5
Step 5: After repairs, clear codes and road test vehicle. Perform TCS activation test by accelerating on loose surface or wet pavement. Verify TCS light functions properly and no codes return.
Estimated Repair Cost
$150 - $800
Parts + labor, varies by vehicle and location
This code indicates the ABS/Traction Control System (TCS) module has detected an electrical circuit fault with the left front traction control solenoid valve #1. The module detected an abnormal voltage, current draw, or resistance in the solenoid circuit that falls outside expected parameters. This ...
The most common cause of C0141 (Left TCS Solenoid #1 Circuit Malfunction) is: Damaged wiring harness or corroded/loose connector pins between ABS module and left front TCS solenoid valve
Typical repair costs for C0141 range from $150 to $800, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Vehicle is safe to drive under normal conditions, but traction control functionality will be disabled or limited. Reduced vehicle stability during acceleration on slippery surfaces increases risk of wheel spin and loss of control. Repair should be completed promptly, especially for winter or wet weather driving.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to C0141 to identify the root cause.
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Quick Info
Category
Chassis
System
Traction Control System / ABS Braking System
Difficulty
Type
Generic (SAE)
Recommended Tools
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