TESTING AND ADJUSTING STANDARD VALUE TABLE FOR ELECTRICAL PARTS PC400, 450-6 20-17 Sys- tem Name of component Connector No. Inspection method Judgment table Measurement conditions Monitor Engine oil pressure switch — Measure resistance If the condition is as shown in the table below, it is normal Low pressure end Engine oil pressure above Min. 1M Ω 68.6 kPa {0.7 kg/cm2} Engine oil pressure below Max. 1 Ω 29.4 kPa {0.3 kg/cm2} High pressure end Engine oil pressure above Min. 1M Ω 166.6 kPa {1.7 kg/cm2} Engine oil pressure below Max. 1 Ω 127.4 kPa {1.3 kg/cm2} 1) Install oil pressure measurement gauge. 2) Remove wiring harness terminal. 3) Start engine.
4) Put tester in contact with terminal screw and chassis. Fuel level sensor P06 (male) Measure resistance If the condition is as shown in the table below, it is normal Raise float Approx. 12 Ω to stopper or below BLP00004 Lower float Approx. to stopper 85 – 110 Ω BLP00005 1) Turn starting switch OFF. 2) Disconnect connector P06. 3) Drain fuel, then remove sensor. 4) Insert T – adapter into sensor. fl Connect the T – adapter to the connector and sensor flange. Hydraulic oil level switch P09 (male) Measure resistance If the condition is as shown in the table below, it is normal Raise float Max. 1 Ω BLP00002 Lower float Min. 1 MΩ BLP00003 1) Turn starting switch OFF.
2) Disconnect connector P09. 3) Drain oil, then remove sensor. 4) Insert T – adapter into sensor. Air cleaner clogging switch P11 P12 Measure resistance If the condition is as shown in the table below, it is normal Air cleaner normal Max. 1 Ω Air cleaner clogged Min. 1 MΩ BLP00006 1) Start engine. 2) Disconnect P11, P12. 3) Put tester in contact with connectors to measure. Engine oil pressure above 68.6 kPa {0.7 kg/cm2} Min. 1M Ω Engine oil pressure below 29.4 kPa {0.3 kg/cm2} Max. 1 Ω Engine oil pressure above 166.6 kPa {1.7 kg/cm2} Min. 1M Ω Engine oil pressure below 127.4 kPa {1.3 kg/cm2} Max. 1 Ω Raise float to stopper BLP00004 Approx.
12 Ω or below Lower float to stopper BLP00005 Approx. 85 – 110 Ω Raise float BLP00002 Max. 1 Ω Lower float BLP00003 Min. 1 MΩ Air cleaner normal Max. 1 Ω Air cleaner clogged Min. 1 MΩ