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Home >> Isuzu >> 2008 >> Ascender LS, 4WD >> Repair and Diagnosis >> Accessories & Equipment >> Memory Modules >> Configurable Customer Control System >> Diagnostic Information & Procedures >> Steering Wheel Controls Inoperative >> Component Testing
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Component Testing

CAUTION: Refer to SIR Caution .
  1. Ignition OFF, disconnect the harness connector at the right steering wheel control switch.
  2. Test for less than 2,400 ohms between the ignition circuit terminal 1 and the ignition circuit jumper terminal 2.
    • If not the specified range, replace the steering wheel control switch.
  3. Test for infinite resistance between the ignition circuit terminal 1 and the signal terminal 6 with the switch in the open position.
    • If not the specified range, replace the steering wheel control switch.
  4. Test for less than 2,400 ohms between the ignition circuit terminal 1 and the signal terminal 6 with the switch in the closed position.
    • If greater than the specified range, replace the right steering wheel control switch.
  5. Disconnect the harness connector at the left steering wheel control switch.
  6. Test for infinite resistance between the ignition circuit jumper terminal 1 and the signal terminal 5 with the switch in the open position.
    • If not the specified range, replace the steering wheel control switch.
  7. Test for less than 12,000 ohms between the signal terminal 5 and the ignition circuit jumper terminal 1 with the switch in the closed position.
    • If greater than the specified range, replace the steering wheel control switch.
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