C0151 code meaning
Right Front ABS Inlet Solenoid Circuit
What C0151 means
C0151 mirrors C0141 on the right side and, like it, is not in the accessible J2012 tables. Saab's 9-3 and 9-5 workshop pages for the Bosch 5.3 TC/ABS and for the 9-5 ESP define it as the right pressure-increase valve, separate from the right front wheel valve code C2455; GM's PIP5094 keyword list carries it, and AA1Car's GM-based table reads Right TCS Solenoid #1. In the diagonal brake layout of those cars the valve feeds pressure into the right front circuit when traction control brakes a spinning wheel. Saab watches the circuit for breaks and shorts continuously and runs the valve test above 6 km/h. Once the code sets, ABS, TCS and ESP stay off, and the brake, ABS and central warning lamps come on.
C0151 at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modePossible
- Repair difficultyHard
- Typical labor1 to 4 hours
- Clears after repairWhen cleared with a scanner
Symptoms of C0151
- Brake, ABS and central warning lamps on
- No traction control when a front wheel spins
Common causes of C0151
- Most likelyDefective coil of the right pressure-increase valve
- PossibleContact fault at the module-to-valve-block interface
- PossibleValve driver fault in the brake control module
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
ABS inlet solenoidABS hydraulic unitABS control module
What each part of C0151 means
| C | Chassis system: brakes, ABS, steering and suspension. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 51 | The exact fault in that area. |
What to do next
- Note C0151 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about C0151
What does C0151 mean?
C0151 means "Right Front ABS Inlet Solenoid Circuit". C0151 mirrors C0141 on the right side and, like it, is not in the accessible J2012 tables. It is a generic code, so it means the same on every make.
Is it safe to drive with C0151?
Drive gently and only to a workshop. With C0151 the car can go into limp mode (reduced power) to protect itself.
Will C0151 fail an emissions test?
C0151 is not an emissions code, so on its own it usually does not fail an emissions test. Other stored codes or a lit check engine light still can.
How hard is C0151 to fix?
Difficulty: hard. A typical repair takes 1 to 4 hours of work. This is a job for a workshop.
Will C0151 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.