Low Oil Pressure Indicator Circuit Troubleshooting (Short) - Honda Accord 2008 Manual

07/11/02 09:11:19 61TA0000_080_0007

Low Oil Pressure Indicator Circuit Troubleshooting (Short)

1. Connect the Honda Diagnostic System (HDS) to the
data link connector (DLC) (see step 2 on page 11-3).
2. Turn the ignition switch to ON (II).
3. Make sure the HDS communicates with the vehicle
and the engine control module (ECM)/powertrain
control module (PCM). If it doesn't communicate,
troubleshoot the DLC circuit (see page 11-208).
4. Check for DTCs (see page 11-3). If a DTC is present,
diagnose, and repair the cause before continuing
with this test.
5. Start the engine, select PGM-FI, and check the OIL
PRESSURE SWITCH in the DATA LIST with the HDS.
Is OF F indicated?
YES − Replace the gauge control module (see page
22-332).
NO − Go to step 6.
6. Turn the ignition switch to LOCK (0).
7. Disconnect the oil pressure switch connector.
8. Start the engine, and check the OIL PRESSURE
SWITCH in the DATA LIST with the HDS.
Is OF F indicated?
−
YES Turn the ignition switch to LOCK (0), then go
to step 9.
NO − Turn the ignition switch to LOCK (0), then go
to step 10.
9. Check the oil pressure switch (see page 8-8).
Is the oil pressure switch OK ?
−
YES Do the oil pressure test (see page 8-9).
−
NO Replace the oil pressure switch (see page 8-8).
10. 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 ECM/
PCM from damage.
11. Disconnect ECM/PCM connector B (49P) and the oil
pressure switch connector.
12. Check for continuity between the oil pressure
switch connector and body ground.
OIL PRESSURE SWITCH CONNECTOR
OPSW
(YEL/RED)
Terminal side of female terminal
Is there continuity?
YES − Repair short in the wire between the oil
pressure switch and the ECM/PCM.
−
NO Update the ECM/PCM if it does not have the
latest software (see page 11-231), or substitute a
known-good ECM/PCM (see page 11-7), then
recheck. If the symptom/indication goes away with
a known-good ECM/PCM, replace the original
ECM/PCM (see page 11-232).
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8-7