Volvo TSI, Manual

Page: 213 / 250

Group 28 Troubleshooting
MID 144 PPID 70 Pedal
Switches, Supply, Check
Other special equipment: J-39200, J-43234,
9998551, J-43340, J-41133
NOTE!
•
Read off the other fault codes for the VECU.
•
Check the particular connectors during the fault
tracing for oxidation and switch resistance. For
detailed circuit information, refer to “VNL, VNM Elec-
trical Schematics,” Group 37.
Appropriate Tests in the VCADS
Pro Tool
The following test(s) are useful for closely examining the
component’s function:
27102–8 Accelerator pedal, switches and sensor,
test
27503–8 Cruise control, switch, test
Measurement at the Component’s
Connector, to the VECU
Note: Faults in the wiring harness to the VECU can
damage the component. Therefore, a check of the com-
ponent should also be made if any of the measurement
values deviate from the expected value.
1
Disconnect the connector at the accel-
erator pedal. Install 5-pin breakout
harness J-41133 to the wiring harness
end only.
J-41133
2
Disconnect the connector at the brake
pedal switch (two pin, Common-558A
wire and Normal Open-567B wire).
3
Disconnect the connector at the clutch
pedal switch (two pin, Normal Open–
571 wire and Common 558B wire).
Supply wire, idle validation switch 1:
4
Turn the ignition key to the ON posi-
tion.
5
Connect a voltmeter to the breakout
harness connector and measure the
voltage.
Measuring points Expected value
Pin D / alternate
ground
B+
J-39200
Supply wire, brake pedal switch:
6
Turn the ignition key to the ON posi-
tion.
7
Connect a voltmeter to the wiring har-
ness connector and measure the
voltage.
Measuring points Expected value
“COMMON” / alternate
ground
B+
J-39200
Supply wire, clutch pedal switch:
8
Turn the ignition key to the ON posi-
tion.
9
Connect a voltmeter to the wiring har-
ness connector and measure the
voltage.
Measuring points Expected value
“COMMON” / alternate
ground
B+
J-39200
Signal wire, idle validation switch 1:
10
Turn the ignition key to the OFF posi-
tion.
11
Connect an ohmmeter to the breakout
harness connector and measure the
resistance.
Measuring points Expected value
Pin C / alternate
ground
1.2 ± 20% k
J-39200
Signal wire, brake pedal switch:
12
Turn the ignition key to the OFF posi-
tion.
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