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

07/11/02 09:11:19 61TA0000_080_0006
Engine Lubrication

Low Oil Pressure Indicator Circuit Troubleshooting (Open)

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. Turn the ignition switch to ON (II), select PGM-FI,
and check the OIL PRESSURE SWITCH in the DATA
LIST with the HDS.
Is ON 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. Check the oil pressure switch (see page 8-8).
Is the oil pressure switch OK ?
YES − Go to step 8.
−
NO Replace the oil pressure switch (see page 8-8).
8. 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.
9. Disconnect ECM/PCM connector B (49P) and the oil
pressure switch connector.
8-6
10. Check for continuity between ECM/PCM connector
terminal B7 and the oil pressure switch connector.
ECM/PCM CONNECTOR B (49P)
Terminal side of female terminals
OPSW (YEL/RED)
OIL PRESSURE SWITCH CONNECTOR
Terminal side of female terminal
Is there continuity?
YES − 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).
−
NO Repair open in the wire between the oil
pressure switch and the ECM/PCM.
ＴＡ０８ＡＥ４Ａ３２２０００３７５０３ＦＡＡＴ００
PSW (YEL/RED)
＊０１