B1002 Diagnostic Trouble Code

B1002 is a kind of OBD-II Diagnostic B-Body Diagnostic Trouble Code.

It is considered generic because it applies to all makes and models of vehicles, although specific repair steps may be different depending on your car model.

Symptoms

Symptoms of a B1002 diagnostic trouble code may include:

Blown fuse (if applicable)
Engine surge
Reduction in engine performance, especially at low RPM levels
Rich or lean exhaust

Possible Causes :

Faulty IMRC actuator relay (if equipped)
A large air leak at or near the number one oxygen sensor would also cause a lean mixture.
Dirty air cleaner element Damaged DPF

Repair Processes :

It should be pretty close to battery voltage (12 volts). If not, then this is the circuit that has the problem. Look for missing ground strap or a rusty ground where the fuel tank is grounded to the frame. Check for damage to the wiring harness connector.

Process Tips

Diagnostic trouble code B1002 is not difficult to diagnose and repair. Thus, it always pays to have a qualified technician to look after your vehicle should this error code arise.

Diagnosing this code requires the engine to be in good running shape, without unmetered air entering the engine. If other codes that relates to misfiring condition, lean running or air entering the engine is present, then you must first fix those error codes before B1002.

Fortunately, B1002 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B1002 Trouble Code For Specific Cars

B1002 Volkswagen Vento SCP (J1850) Invalid or Missing Data for Cassette Tape
B1002 Mercury Milan Air Suspension Rear Height Sensor High (SE) Signal Circuit Short To Battery
B1002 Pontiac Trans Sport Front Crash Sensor Internal Fault
B1002 Hyundai Ix20
B1002 Daimler 2.5-litre Gyroscope Error
B1002 Holden Hr Power Door Unlock Circuit Open
B1002 Griffith Gt Passenger Seatback Rearward Switch Circuit Short to Ground