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Test SC-1A: Checking Speed Control Operation

NOTE: Using scan tool, check for any codes. See RETRIEVING DIAGNOSTIC TROUBLE CODES  under SELF-DIAGNOSTIC SYSTEM. Use this test only when no speed control DTCs are present.
  1. Turn ignition on. Using scan tool, observe speed control switch inputs. While observing scan tool, press speed control ON/OFF switch several times. If scan tool displayed speed control ON/OFF switch switching on and off, go to next step. If scan tool did not display speed control ON/OFF switch switching on and off, perform TEST SC-2A: CHECKING SPEED CONTROL OPERATION .
  2. Turn speed control ON/OFF switch to on. While observing scan tool display, press SET switch several times. If scan tool displayed switch status changing from PRESSED to RELEASED, go to next step. If scan tool did not display switch status changing from PRESSED to RELEASED, replace SET switch. Perform TEST VER-4A: SPEED CONTROL VERIFICATION .
  3. While observing scan tool display, press RESUME/ACCEL switch several times. If scan tool displayed switch status changing from PRESSED to RELEASED, go to next step. If scan tool did not display switch status changing from PRESSED to RELEASED, perform TEST SC-3A: CHECKING SPEED CONTROL RESUME/ACCEL SWITCH .
  4. While observing scan tool display, press CANCEL switch several times. If scan tool displayed switch status changing from PRESSED to RELEASED, go to next step. If scan tool did not display switch status changing from PRESSED to RELEASED, replace CANCEL switch. Perform TEST VER-4A: SPEED CONTROL VERIFICATION .
  5. While observing scan tool display, press COAST switch several times. If scan tool displayed switch status changing from PRESSED to RELEASED, go to next step. If scan tool did not display switch status changing from PRESSED to RELEASED, replace COAST switch. Perform TEST VER-4A: SPEED CONTROL VERIFICATION .
  6. While observing scan tool display, press brake pedal several times. If scan tool displayed brake switch status changing from PRESSED to RELEASED, perform TEST SC-1B: CHECKING SPEED CONTROL OPERATION . If scan tool did not display brake switch status changing from PRESSED to RELEASED, perform TEST SC-4A: CHECKING BRAKE SWITCH SENSE .
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