Metering Oil Pump Control Inspection
- Connect the M-MDS or equivalent to the DLC-2.
- Verify that DTC P1686, P1687 or P1688 is not displayed.
- If DTC P1686, P1687, P1688 are displayed, perform DTC inspection. (See DTC TABLE )
- Verify that the metering oil pump motor coil resistance is as specified.
- Verify that there is continuity between the metering oil position switch terminal A and C.
- Measure the voltage of PCM terminal 2N at idle.
Specification 0 V
- If not as specified, inspect for the following wiring harnesses and connectors:
- Between PCM terminal 2N and metering oil pump position switch terminal A
- Between PCM terminal 1U and metering oil pump position switch terminal C
- If not as specified, inspect for the following wiring harnesses and connectors:
- Inspect for the following and repair or replace according to inspection results.
- Oil pipe (leakage or crack between metering oil pump and oil nozzle)
- Oil nozzle
- Air bleed hose (leakage, clogged, damage or poor connection)