 |
|
Oil Pressure Switch Circuit
|
Overview
| CODE | REASON | EFFECT |
| Fault Code: 141 PID: P100 SPN: 100 FMI: 4 LAMP: Yellow SRT: |
Low voltage detected on pin 9 of the engine harness. |
Default value used for oil pressure. No engine protection for oil pressure. |
 Oil Pressure Switch Circuit
|
Circuit Description
The oil pressure switch is used by the electronic control module (ECM) to monitor the lubricating oil pressure.
Component Location
The oil pressure switch is located on the engine block, below and to the right of the ECM. Refer to Procedure 100-002 for a detailed component location view.
Shop Talk
- If Fault Code 143 or 415 is not present, the problem is not related to the engine lubrication system.
- The INSITE™ electronic service tool can be used to monitor the oil pressure signal voltage going into the ECM.
- If an oil pressure switch is installed, the INSITE™ electronic service tool will read a constant value of 379 kPa [55 psi] ± 2 kPa [±0.3 psi] if the ECM is reading a signal from the oil pressure switch.
- The switch is a single wire device which requires engine block ground for operation.
- Engine Protection will activate, if enabled, if the lubricating oil pressure drops below 41 kPa [6 psi] with the engine running.
Refer to Troubleshooting Fault Code t05-141sw
Last Modified: 26-Oct-2010
;){kind=link}
;){kind=link}