2007 ISUZU KB P190 cruise control

Cruise Control – HFV6 Page 8C–22
3.3 Stop Lamp Switch Assembly
Remove
1 Press the connector locking tab while pulling on the
stop lamp connector (1) and remove from the switch
assembly (2).
2 Twist the stop lamp switch assembly (2) anticlockwise a quarter of a turn and pull out of the brake pedal
support bracket.
3 If required, remove the plastic clip (3) by pressing the locking tabs on the rear of the clip and pulling from the
brake pedal support bracket.
Figure 8C – 10

Test
Terminal Testing
1 Using a multimeter, probe the pins of the switch assembly and compare to the table below.
NOTE
The pins are as follows:
• C44 – pins 1 and 2
• C44 – pins 3 and 4
NOTE
Holding the plunger (5) with tape will help when
performing the test with the plunger in the active
position (plunger pressed).

Figure 8C – 11
Plunger Position Connector C44 – 1 and 2 Connector C44 – 3 and 4
Neutral position (plunger extended) Open circuit Continuity
Active position (plunger pressed) Continuity Open circuit

Reinstall
1 If removed, install the plastic clip (2) with the arrow pointing upwards, refer to Figure 8C – 11.
2 With the connectors pointing upwards (12 o’clock position), insert the switch assembly (1) into the plastic clip.
3 Ensure the brake pedal is in the rest position.

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Cruise Control – HFV6 Page 8C–23
4 Push the switch assembly (1) so the plunger is
pressed and the end switch barrel is against the brake
pedal (2).
5 Twist the switch assembly clockwise to lock into place. The distance between the brake pedal and the switch
barrel should be 0.7 ± 0.5 mm.
6 Install the wiring connector to the switch assembly.

Figure 8C – 12


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Cruise Control – HFV6 Page 8C–24
3.4 Clutch Pedal Switch (Manual Only)
Remove
1 Disconnect the electrical connector (1) from the clutch
switch (2).
2 Loosen the lock nut (3) and remove the clutch switch from the pedal bracket.

Figure 8C – 13

Test
1 Using a multimeter set to measure ohms, probe the pins (1) of the switch assembly.
2 In the neutral position (plunger extended) there should be an open circuit across the switch.
3 In the active position (plunger extended) there should be a closed circuit across the switch.
4 Replace the switch as per the following reinstall procedure if the tests prove the switch to be faulty.
5 If the test proves the switch to be serviceable, reinstall it as per the following procedure.
Figure 8C – 14

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Cruise Control – HFV6 Page 8C–25

Reinstall
6 Install the clutch switch (1) as follows:
a Insert the switch into the clutch pedal bracket.
b Rotate the switch clockwise until obtaining the clearance (2) between the pedal (3) and the
pedal stoper.
Clutch pedal and pedal stoper
clearance specification............................... 0.5 – 1.5 mm
c Tighten the lock nut (4) to the correct torque specification.
Clutch switch lock nut
torque specification ............................................ 31.0 Nm
d Recheck the clutch switch clearance, readjust clearance if required.
NOTE
No adjustment is required for the clutch switch
itself.

Figure 8C – 15

7 Reconnect the electrical connector to the clutch switch.
8 Verify the operation of the clutch switch by operating the cruise control and checking the clutch switch stops operation of the cruise control when the clutch pedal is pressed.

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Cruise Control – HFV6 Page 8C–26
4 Special Tools
Tool Number Illustration Description Tool Classification
3588
Digital Multimeter
Previously released as J39200 or
equivalent.
NOTE: The instrument must have 10
meg ohms impedance and be capable
of reading frequencies. Mandatory
KM-609 Electronic Kit.
Used in conjunction with a multimeter
for measuring voltages and
resistances without damaging wiring
harness connectors. Desirable.
70000861
Tech 2 Diagnostic Scan Tool
Previously released. Mandatory


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