Diagnostic Manual ( EMS) LCV MDI BSIII CRDe
Rev 01- Mar 14
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The repair methods given by the manufacturer in this document are based on the technical specifications current at the time of release.
The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units
and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of whole of the present
document, are prohibited without the prior written consent of 2014 Mahindra & Mahindra Ltd (Truck & Bus Division)
Boost Pressure Sensor
Description -
The boost pressure signal is monitored. The signal is converted, linearized and
then monitored.
DTC Diagnostic item
P0236
P0237
P0238
P1235
P1236
P1237
P1238
P0097
P0098
P007C
P007D
Signal range check for intercooler downstream pressure sensor
below minimum limit
Signal range check for intercooler downstream pressure sensor
below minimum limit
Boost pressure exceeds the calibrated max threshold.
Analogue to Digital convertor fault.
Boost pressure variation exceeds the max boost pressure
Gradient value.
Raw boost pressure falls below the calibrated min value
Raw boost pressure exceeds the calibrated max value
Boost temperature signal falls below a calibrated value
Boost temperature signal falls above a calibrated value
Signal range check for intercooler downstream temperature
sensor below minimum limit.
Signal range check for intercooler downstream temperature
sensor above
maximum limit
Background
The ECU monitors the Boost pressure . This sensor
also monitors the air temperature.
Malfunction; out‐
‐‐
‐of‐
‐‐
‐range
1. When the measured value is above or below a
range.
2. When the pressure gradient exceeds a value.
3. When an ADC or electrical fault is present.
Reaction
• System Check lamp is ON
• Engine torque is limited.
Short circuit to battery
or ground.
Defective sensor
P0236
P0237
P0238
P1235
P1236
P1237
P1238
P0097
P0098
P007C
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