C1689 Porsche 3400 OBD Code

OBD/2 C1689 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 C1689, so consult the manual to locate the brake fluid reservoir. Bear in mind that a low fluid level can set code C1689 on some applications, so make sure that on fluid operated systems the fluid level is up to the mark before starting an electrical diagnosis.

C1689 Porsche 3400 Error Code Repair Process :

The rule of C1689 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 o2 sensor heater circuit malfunction (bank 1 sensor 3). Likewise, overriding the OBD C1689 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.

Difficulty Level (Soso)

Repair Time (50 Min.)

Cost Prediction : $ 60-110

Common Causes of Porsche 3400 C1689 OBD2 Code

A common cause of code C1689 is the failure of O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 3), but there are several other possible causes as well, such as ;

• EVAP canister or fuel tank leaks
• Camshaft Position Sensor harness is open or shorted
• 1Camshaft Position Sensor circuit poor electrical connection
• Incorrect fuel pressure

C1689 is a kind of Chassis Trouble Code Diagnosing chassis noises can be one of the most frustrating problems technicians face. Fortunately, manufacturers have engineered noise, vibration and harshness (NVH) diagnostic techniques and equipment to find the source of the noise.

C1689 code for other Porsche cars

You can view according C1689 DTC for your car model. We selected several models to see obd2 solutions click and view it.

• C1689 Porsche 1300
• C1689 Porsche 356
• C1689 Porsche 550
• C1689 Porsche 718
• C1689 Porsche 804
• C1689 Porsche 901
• C1689 Porsche 904
• C1689 Porsche 906
• C1689 Porsche 907
• C1689 Porsche 908
• C1689 Porsche 910
• C1689 Porsche 911
• C1689 Porsche 911 Type 991
• C1689 Porsche 911 Type 996
• C1689 Porsche 911 Type 997
• C1689 Porsche 912
• C1689 Porsche 914
• C1689 Porsche 917
• C1689 Porsche 924
• C1689 Porsche 928
• C1689 Porsche 930
• C1689 Porsche 931
• C1689 Porsche 935
• C1689 Porsche 936
• C1689 Porsche 937
• C1689 Porsche 944
• C1689 Porsche 959
• C1689 Porsche 962
• C1689 Porsche 964
• C1689 Porsche 965
• C1689 Porsche 968
• C1689 Porsche 986
• C1689 Porsche 993
• C1689 Porsche 996
• C1689 Porsche Boxster
• C1689 Porsche Boxster Type 981
• C1689 Porsche Boxster Type 986
• C1689 Porsche Boxster Type 987
• C1689 Porsche Carrera Gt
• C1689 Porsche Cayenne
• C1689 Porsche Cayenne Type 92a
• C1689 Porsche Cayenne Type 9pa
• C1689 Porsche Cayman
• C1689 Porsche Cayman Type 718
• C1689 Porsche Cayman Type 981
• C1689 Porsche Cayman Type 987
• C1689 Porsche Coupe
• C1689 Porsche Dp
• C1689 Porsche Gt
• C1689 Porsche Gt2
• C1689 Porsche Gt3
• C1689 Porsche Karisma
• C1689 Porsche Kremer
• C1689 Porsche Macan Type 95b
• C1689 Porsche Mega
• C1689 Porsche Panamera Type 970
• C1689 Porsche Panamericana
• C1689 Porsche Rsk
• C1689 Porsche Tapiro

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