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MID 130 PID 161 Input Shaft, Rotation Speed

The document summarizes a fault code from a transmission control unit. Specifically, it describes Fault Code 161 for the input shaft rotation speed sensor. The fault occurs when the counter shaft speed differs from the main shaft and vehicle speeds, but is within the sensor's normal range. This can cause yellow lamp illumination, slow gear changes, inability to use the transmission brake for upshifts, and only being able to engage the starting gear when stationary. The possible cause is a difference between the main and counter shaft speeds despite both sensor signals being valid.

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4K views1 page

MID 130 PID 161 Input Shaft, Rotation Speed

The document summarizes a fault code from a transmission control unit. Specifically, it describes Fault Code 161 for the input shaft rotation speed sensor. The fault occurs when the counter shaft speed differs from the main shaft and vehicle speeds, but is within the sensor's normal range. This can cause yellow lamp illumination, slow gear changes, inability to use the transmission brake for upshifts, and only being able to engage the starting gear when stationary. The possible cause is a difference between the main and counter shaft speeds despite both sensor signals being valid.

Uploaded by

hadi
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Group 43 MID 130 Transmission Control Unit, Fault Codes

MID 130 PID 161 Input Shaft, Rotation Speed


Type of FMI Description: Fault Condition: Possible Possible Cause:
fault: Symptoms:
FMI 1 • Data valid but below • The sensor signal • Yellow lamp is • N/A
operational range is within normal sent
range and, • Slow gear
• The counter shaft changes
speed differs • Transmission
from both the brake up-shifts
main shaft speed cannot be used
(SESM) and the
vehicle speed • Engagement point
received from the not functioning
Vehicle ECU when properly
the counter shaft • Starting gear can
is rotating only be engaged
The following when the vehicle is
conditions must be stationary or when
fulfilled for a time the vehicle speed
of 2.0 s in order to is high enough to
activate: synchronize the
transmission with
• A gear (not the engine
neutral) is
engaged in the
transmission
• The value of the
input shaft speed
calculated from
the main shaft
speed sensor
(SESM) is more
than 300 rpm
• The value of the
input shaft speed
calculated from
the counter shaft
speed sensor
(SESC) is more
than 300 rpm

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