P1820 Isuzu Zxs OBD Code

OBD/2 P1820 error code description and symptoms.

Low Speed Fuel Pump Primary Circuit Malfunction The PCM monitors the low speed fuel pump (LFP) primary circuit output from the PCM.
The test fails if: When the LFP circuit is commanded on (grounded), excessive current draw is detected on the LFP circuit; or when the LFP circuit is commanded off, voltage is not detected on the LFP circuit (the PCM expects to detect VPWR voltage coming through the low speed fuel pump relay coil to the LFP circuit). Open or shorted low fuel pump (LFP) circuit Open VPWR to low speed fuel pump relay Damaged low speed fuel pump relay Damaged PCM An open circuit or short to ground can only be detected with the low speed fuel pump.

Some systems require that the actuator has an adequate supply of brake fluid. Low brake fluid levels can mimic the symptoms of code P1820, so consult the manual to locate the brake fluid reservoir. Bear in mind that a low fluid level can set code P1820 on some applications, so make sure that on fluid operated systems the fluid level is up to the mark before starting an electrical diagnosis.

P1820 Isuzu Zxs Error Code Repair Process :

The rule of P1820 code when it comes to emissions-related vehicle repair is that any modification that changes the vehicle from a certified configuration to a non-certified configuration is considered tampering: this applies to both vehicle owners and repair facilities and is, therefore, a Federal offense. Replacing a catalyst with a straight pipe is one traditional example of p1820 transmission transfer case clockwise shift relay coil circuit failure. Likewise, overriding the OBD P1820 error in system through the use of high-tech defeat devices or non-certified computer chips, for example, would also be considered tampering. The OBD system may, however, be repaired back to its original certified configuration with certified performance chips or appropriate aftermarket parts.

Common Causes of Isuzu Zxs P1820 OBD2 Code

A common cause of code P1820 is the failure of P1820 Transmission Transfer Case Clockwise Shift Relay Coil Circuit Failure, but there are several other possible causes as well, such as ;

EVAP canister or fuel tank leaks
Faulty front heated oxygen sensor
Incorrect Positive Crankcase Ventilation (PCV) hose connection
Faulty variable valve timing (VVT)

P1820 is a kind of Powertrain Trouble Code

Powertrain of a modern automobile, comprising engine (with exhaust system), transmission, drive shaft, suspension and the wheels. In a motor vehicle, the term powertrain or powerplant describes the main components that generate power and deliver it to the road surface, water, or air.

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

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P1820 Isuzu Zxs OBD Code

P1820 Isuzu Zxs Error Code Repair Process :

Common Causes of Isuzu Zxs P1820 OBD2 Code

P1820 code for other Isuzu cars