Low Oil Pressure Indicator Circuit Troubleshooting (Short)
WARNING: This page is about a different car, the 2011 Honda Insight and 2010 Honda Insight. However, it is still accessible from the selected car via links, so may be relevant.
- Connect the Honda Diagnostic System (HDS) to the data link connector (DLC) (see step 2 under GENERAL TROUBLESHOOTING INFORMATION ).
- Turn the ignition switch to ON (II).
- Make sure the HDS communicates with the vehicle and the powertrain control module (PCM). If it does not communicate, troubleshoot the DLC circuit (see DLC CIRCUIT TROUBLESHOOTING ).
- Check for DTCs (see GENERAL TROUBLESHOOTING INFORMATION ). If a DTC is present, diagnose, and repair the cause before continuing with this test.
- Start the engine, select PGM-FI, and check the OIL PRESSURE SWITCH in the DATA LIST with the HDS.
Is OFF indicated?
YES -Replace the gauge control module (see GAUGE CONTROL MODULE REPLACEMENT ).
NO -Go to step 6.
- Turn the ignition switch to LOCK (0).
- Check the oil pressure switch (see OIL PRESSURE SWITCH TEST
).
Is the oil pressure switch OK?
YES -Go to step 8. ).
NO -Do the oil pressure test (see OIL PRESSURE TEST . If the oil pressure is OK, replace the oil pressure switch (see OIL PRESSURE SWITCH TEST ).
- Turn the ignition switch to ON (II), and jump the SCS line with the HDS, then turn the ignition switch to LOCK (0).NOTE: This step must be done to protect the PCM from damage.
- Disconnect PCM connector B (44P) and the oil pressure switch connector.
- Check for continuity between the oil pressure switch connector and body ground.
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES -Repair a short to ground in the wire between the oil pressure switch and the PCM.
NO -Update the PCM if it does not have the latest software (see PCM UPDATE ), or substitute a known-good PCM (see SUBSTITUTING THE PCM ), then recheck. If the symptom/indication goes away with a known-good PCM, replace the original PCM (see PCM REPLACEMENT ).