Dell 2135cn Service Manual page 324

Step
Checking the SOLENOID FEED for resistance
24 Disconnect P/J231 of the SOLENOID FEED.
Is the resistance across J231-1 and J231-2 about 96 ohm?
Checking the connectors of the SENSOR PHOTO (Regi
Sensor) for connection
Check the connections between the PWBA MCU and
SENSOR PHOTO.
Are P/J23 and P/J232 connected correctly?
25
Checking the HARN ASSY L SIDE for continuity
Disconnect J23 from the PWBA MCU.
26
Disconnect J232 from the SENSOR PHOTO.
Is each cable of J23 <=> J232 continuous?
Checking the power to the SENSOR PHOTO
Disconnect J23 from the PWBA MCU.
27
Is the voltage across P23-3pin <=> ground on the PWBA
MCU, about +3.3 VDC?
Checking the SENSOR PHOTO for operation
Check the voltage across J23-5pin <=> ground on the
PWBA MCU.
28 Remove the CHUTE LOW (PL3.2.27) once to check the
operation.
Does the voltage change, when the actuator (ACTUATOR
REGI IN) is operated?
Version 1 2008.02.01
Check
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Chapter 1 Troubleshooting
Remedy
Yes
Replace the Replace the
PWBA MCU. SOLENOID
(Refer to Removal FEED. (Refer to
31/ Replacement Removal 36/
29.) Replacement 24.)
Reconnect the
connector(s) P/
Go to step 26.
J23 and/or P/J232
correctly.
Replace the
Go to step 27. HARN ASSY L
SIDE.
Replace the
PWBA MCU.
Go to step 28. (Refer to Removal
31/ Replacement
29.)
Replace the
PWBA MCU. Replace the
(Refer to Removal SENSOR
31/ Replacement PHOTO.
29.)
No