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OSPREY- Application
DTC Troubleshooting Data
Version: 4.0
Date: 10-02-2017
Prepared by: Mithipati Prasad
Checked by: G S Raju / Senthilnathan S
Page: 93 of 654
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TATA MOTORS Ltd.
This document must not be used in any way, such as copying and redistributing to third parties, without the consent of author.
P0107: Atmospheric Pressure Sensor - Short Circuited To Ground
Overview:
DTC Description as per ISO standard
Manifold Absolute Pressure/Barometric Pressure sensor
circuit Low
ECU Pin Number
ECU Internal
Customer Symptom
-
Fault Effects (On Vehicle)
Probable loss of power and black smoke
Lamp Status (If Any)
-
Fault Detection Condition (Root cause)
This fault gets logged if the signal of the Atmospheric
pressure sensor mounted on the EMS ECU is short circuited
to Ground.
Normal Operating Condition
No Atmospheric pressure sensor related faults
Probable Trouble Area
Atmospheric Pressure Sensor
Related wiring Harness, connector or terminals
ECU
Healing Condition
Rectify the error
Clear through diagnostic tool
Ignition OFF & ON
Component Details:
Atmospheric Pressure Sensor is mounted on EMS ECU; it gives the Atmospheric Pressure signal to ECU internally. No
separate hardware pins assigned to Atmospheric Pressure signal in wiring harness. EMS uses the atmospheric pressure
information for correction of air fuel ratio at higher altitudes.
Preliminary Checks
x
Check whether the customer voice / view about the issue is matching with the fault effects mentioned above. If
yes, go ahead with next steps. If not, check for other DTC’s presence.
x
Check whether similar complaints are earlier reported. If yes, perform the preliminary checks with respect to
earlier issue closure.
Check whether the EMS ECU is getting power supply and GND. Rectify wiring Harness as
per the schematic if found faulty
x
Check whether the Main relay is faulty. Rectify/Replace if found main relay is faulty.
x
If fault still persists then Call Hot Line