P0AB7 code meaning
Engine Mount B Control Circuit Low
Powertrain system Generic code P0Axx codes Check engine light
What P0AB7 means
P0AB7 means the engine controller sees the control line of active engine mount B pulled too low, the usual signature of a short to ground or an actuator coil with too little resistance. Ford's 2020-23 gasoline OBD summary lists it among the active-mount checks for bank 2: the output driver flags the fault continuously and the PCM matures it within roughly 5 seconds. Honda describes the code on the 2008 Pilot as a low-current fault in the rear mount actuator circuit. P0AB6 covers the open circuit, P0AB8 the high side, and P0A15 the same fault on mount A. The driver usually feels more engine shake at idle; drivability is otherwise unaffected.
P0AB7 at a glance
- Check engine lightYes, usually on
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyMedium, DIY possible
- Typical labor0.5 to 2.5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P0AB7
- Check engine light on
- Increased vibration felt through seat and steering wheel at idle
Common causes of P0AB7
- Most likelyControl wire chafed through and shorted to ground
- PossibleMount solenoid coil shorted internally
- PossibleWater ingress in the mount connector
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Engine mount bWiring harnessECM
What each part of P0AB7 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| A | Area: hybrid propulsion. |
| B7 | The exact fault in that area. |
What to do next
- Note P0AB7 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 P0AB7
What does P0AB7 mean?
P0AB7 means "Engine Mount B Control Circuit Low". P0AB7 means the engine controller sees the control line of active engine mount B pulled too low, the usual signature of a short to ground or an actuator coil with too little resistance. It is a generic code, so it means the same on every make.
Is it safe to drive with P0AB7?
Usually yes, for a short time, if the check engine light is steady and the car drives normally. If the light flashes or the car runs badly, stop and have it checked.
Will P0AB7 fail an emissions test?
P0AB7 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 P0AB7 to fix?
Difficulty: medium. A typical repair takes 0.5 to 2.5 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will P0AB7 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.