P1532 Diagnostic Trouble Code

P1532 is a kind of OBD-II Diagnostic P-Powertrain 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 P1532 diagnostic trouble code may include:

Faulty or damaged wiring
The engine oil will exhibit dilution from the ECUs attempts to increase engine temperature. Some vehicles advance the fuel injection timing slightly after top center to afterburn a small amount of fuel to increase exhaust temperatures. Some of this fuel enters the crankcase. When the ECU determines the necessity to regenerate the DPF, the service life of the oil be shortened significantly
Poor fuel economy
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.
A large vacuum leak would cause a massive amount of un-metered air to enter the intake manifold resulting in an overly lean mixture.

Repair Processes :

Check to make sure they are not burnt or corroded. If in doubt, get some Electrical Contact cleaner at any parts store if cleaning of the terminals is needed. With the valve disconnected, the red voltmeter lead should be attached to the IMRC valve power wire and the black voltmeter lead connected to ground.

Process Tips

Diagnostic trouble code P1532 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 P1532.

Fortunately, P1532 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P1532 Trouble Code For Specific Cars

P1532 Volkswagen Tiguan
P1532 Rover T.3 Ignition Key-In Circuit Failure
P1532 Morris 1100 Brake Pedal Input Circuit Battery Short
P1532 Isuzu I-350
P1532 Daewoo Evanda Fuel Volume Regulator Control Circuit/Open
P1532 Autovia V8 Aux Heater Glow Plug Circuit Open
P1532 Vermorel Vermorel Purge Flow Sensor Circuit Low Input