TSB150071-092116

Intake Manifold Pressure/Temperature Sensor Water Intrusion Resulting in Fault Code 12... Page 1 of 4
Technical Service Bulletin Number
TSB150071
Technical Service Bulletin
Subject
Intake Manifold Pressure/Temperature Sensor Water Intrusion Resulting in Fault Code 122,
123, 124, 125, or 2973
Issue
A new intake manifold pressure/temperature sensor, Part Number 2897334, was released in
July 2014.
The capacitor in the new intake manifold pressure/temperature sensor is not completely
covered in protective silicone gel, leaving the capacitor exposed.
Moisture intrusion from water spray and water/ice accumulation on the air intake manifold can
cause corrosion and incorrect sensor readings.
Fault Code(s) 2973, 122, 123, 124, or 125 can be set as a result.
NOTE: This issue does not affect obsolete intake manifold pressure/temperature
sensor, Part Number 2872784.
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Intake Manifold Pressure/Temperature Sensor Water Intrusion Resulting in Fault Code 12... Page 2 of 4
Figure 1, Water Accumulation On The Air Intake Manifold.
Verification
Product Affected











ISB6.7 CM2350 B101
B6.7 CM2350 B121B
ISL9 CM2350 L101
ISX12 CM2350 X102
ISX15 CM2250 SN
ISX15 CM2350 X101
QSB6.7 CM2250 EC
QSB6.7 CM2350 B105
QSL9 CM2250 L115
QSL9 CM2350 L102
QSX15 CM2350 X106
Verification Steps
1. Use INSITE™ electronic service tool to check for active or inactive Fault Code(s)
2973, 122, 123, 124, or 125.
2. If any of the fault codes listed above are present, remove the intake manifold
pressure/temperature sensor and confirm that the part number is 2897334. The
part number can be found on the connector.
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Intake Manifold Pressure/Temperature Sensor Water Intrusion Resulting in Fault Code 12... Page 3 of 4
3. If the part number is 2897334, locate the 16-digit serial number on the intake
manifold pressure/temperature sensor connector. See Figure 2 below.
4. If the serial number is 91514383xxxxxxxx or above, published troubleshooting
should be resumed.
5. If the serial number is 91514382xxxxxxxx or below, reference Resolution section
below.
Figure 2, Serial Number Location on the Intake Manifold Pressure/Temperature Sensor.
Resolution
Table 1, Intake Manifold Pressure/Temperature Sensor Serial Number Range
Part Number
2897334
Serial Number
Status
91514383xxxxxxxx and above
OK
91514382xxxxxxxx and below
Not OK
If issue has been verified and intake manifold pressure/temperature sensor serial number
range status is Not OK per Table 1, replace with part number 2897334, which has a serial
number status that is OK per Table 1.
NOTE: Obsolete intake manifold pressure/temperature sensor, Part Number 2872784,
can also be used to replace intake manifold pressure/temperature sensor, Part Number
2897334.
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Intake Manifold Pressure/Temperature Sensor Water Intrusion Resulting in Fault Code 12... Page 4 of 4
Warranty Statement
The information in this document has no effect on present warranty coverage or repair
practices, nor does it authorize TRP or Campaign actions.
Document History
Date
2015-5-14
2016-8-16
2016-9-21
Details
Module Created
Added ISB6.7 CM2350 B101, QSB6.7 CM2250 EC, QSB6.7 CM2350 B105,
QSL9 CM2250 L115, and QSL9 CM2350 L102 to Product Affected section.
Added B6.7 CM2350 B121B.
Last Modified: 23-Sep-2016
Copyright © 2000-2010 Cummins Inc. All rights reserved.
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10/3/2016