Inspection
Indicator does not come on with the ignition switch turned to "ON"
Remove the rubber cap, and disconnect the oil pressure switch wire by removing the terminal screw.
Ground the wire terminal to the engine with a jumper wire.
Turn the ignition switch to "ON" and check the oil pressure indicator.
If the indicator comes on, replace the oil pressure switch.
If the indicator does not come on, check for an open circuit in the Blue/red wire.
Indicator stays on while the engine is running
Remove the rubber cap, and disconnect the oil pressure switch wire by removing the terminal screw. Remove the oil pressure indicator bulb (page 19-7). Check for continuity, and check for a short circuit in the Blue/red wire.
If there is no continuity, check the oil pressure (page 4-3).
If the oil pressure is normal, replace the oil pressure switch.
Removal/installation
Remove the rubber cap, and disconnect the oil pressure switch wire by removing the terminal screw. Remove the oil pressure switch.
Apply sealant to the pressure switch threads and install it.
Torque: 12 N·m (1.2 kgf·m, 9 lbf·ft).
Connect the oil pressure switch wire and tighten the screw.
Torque: 2 N·m (0.2 kgf·m, 1.4 lbf·ft).
Cover the rubber cap to the oil pressure switch.
