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Sensor Supply Voltage Number 1 Circuit
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Overview
| CODE | REASON | EFFECT |
| Fault Code: 352 PID: S232 SPN: 1079 FMI: 4/4 LAMP: Amber SRT: |
Sensor Supply Voltage Number 1 Circuit – shorted low. Low voltage detected at sensor supply Number 1 circuit. |
Engine will run derated. |
 Sensor Supply Voltage Number 1 Circuit
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Circuit Description
The sensor supply voltage Number 1 of the electronic control module
(ECM) provides (+) 5 volt supply for the barometric pressure sensor, engine oil pressure sensor, and fuel pump pressure sensor on the engine harness. This +5 volt supply also powers two optional OEM devices. The two devices are digital vehicle speed sensor and remote accelerator sensor.
Component Location
The sensor supply Number 1 is located in the ECM. The supply voltage is spliced off in the engine and OEM harness to each sensor it supports.
Shop Talk
Low voltage on the (+) 5 volt supply line can be caused by a short circuit to ground in a supply line, a short circuit between a supply line and a return line, a failed sensor, or a failed ECM power supply.
Refer to Troubleshooting Fault Code t05-352
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