Volvo TSI, Manual

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Group 28 Troubleshooting
Check of Subsystem
Before working on a vehicle, set the parking brakes,
place the transmission in neutral, and block the
wheels. Failure to do so can result in unexpected
vehicle movement and can cause serious personal in-
jury or death.
1
Disconnect the VECU and install
adapter J-43234 between the VECU
and wiring harness connector PA/PB.
J-43234
2
Connect 60–pin breakout box 9998551
(with overlay J-43340) to the adapter.
9998551
J-43340
3
Personal injury hazard. Never work under or around a
raised vehicle unless it is securely supported on jack
stands of adequate rating and the front wheels are
securely chocked. Failure to use adequate jack stands
and chock the wheels can result in the vehicle falling,
which can cause serious injury or death to anyone un-
der or near the vehicle.
Chock the front wheels. Release the
parking brake and jack up one rear
wheel so that it can be turned by hand.
Signal wire
4
Turn the ignition key to the OFF posi-
tion.
5
Connect a voltmeter to the 60–pin
breakout box and measure the voltage
while turning the wheel by hand. The
voltage will alternate from positive to
negative and will vary with speed. Volt-
meter function “MIN/MAX” may be
useful to determine value.
Note: The transmission output shaft
must be turning.
Measuring
points
Expected
minimum
value
Transmission
PB6 / PB20 +0.1 V to -0.1
V
Volvo
+0.1 V to -0.1
V
Fuller
+0.1 V to -0.1
V
Allison HT-
740
NO DIAG-
NOSTICS
Allison Auto-
matic
J-39200
Verification
No VCADS Pro tool test is currently available to verify
this fault correction.
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