9. At the next screen, align the cursor with 'ISC*
STEPPER RENEW' then press the validation key
which is marked '*'.
D
ISC = Idle Speed Control
10. On pressing the validation key, the diagnostic tool
will send a command that drives the throttle to the
fully closed position. The tool will also display the
voltage reading coming from the throttle position
sensor which will be needed for a check/adjustment
made later in the process.
Tighten the stepper arm until a clearance of 0.5 mm
can be measured between the idle speed control
cam and the throttle roller.
cda
Idle speed control lever
2. Throttle roller
12. Check the voltage reading on the tool. If the reading
is 0.6 volts +/ 0.02 volts, MAKE A NOTE OF THE
EXACT VOLTAGE READING then proceed to step
16. If the reading is not within this tolerance band,
adjustment must be made as described in
paragraphs 13 to 15.
13. Slacken the screws on the throttle position sensor.
10.118
e
e
14. Gently turn the throttle position sensor until the
voltage reading on the tool shows 0.6 volts +/- .0.02
volts. MAKE A. NOTE OF THE EXACT VOLTAGE
READING.
15. Tighten the sensor retaining screw to 3.5 Nm and
recheck the voltage reading shown on the tool.
Repeat the adjustment if the reading is outside the
specified range, NOTING THE FINAL VOLTAGE
READING IF ADJUSTMENT IS MADE.
16. Press the validation key marked '*' to progress to
the next adjustment.
17. On pressing the validation key, the diagnostic tool
will send a command that drives the throttle to the
fully open position. The tool will also display the
voltage reading coming from the throttle position
sensor.
18. With the stepper fully opened, check the voltage
shown on the tool and adjust the nut on the top of
the stepper arm until the tool
equivalent to X+0.15 (+/- 0.05V) where X= the
voltage measured in step 12 (or 14 if re-adjusted).
For example, if the voltage measured was 0.6 volts,
then the correct setting would be 0.70-0.80 volts.
cdba
1. Adjustment nut
19. Press the validation key marked '*' to fully close the
idle speed control stepper motor. After a minimum
of 15 seconds (the tool will not allow further actions
to take place during this period), press the validation
key again to return the ECM to normal control.
Service Manual - Tiger
shows a voltage
.
.
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