TEST STEP | ACTION TO TAKE |
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A - Verify Power to the Cruise Control Module | Yes - Go to Part D No - Go to Part B |
B - Check Ignition Circuit | Yes - Go to Part C No - Replace Ignition Fuse, or Service Ignition Circuit |
C - Check Module Ground Circuit | No - Fix Ground Circuit for Cruise Control Yes - You must have goofed, try Test A AGAIN ! |
D - CHECK DEACTIVATOR SWITCH CIRCUIT | Yes - Go to Part H No - No Go to Part E |
E - CHECK DEACTIVATOR SWITCH | Yes - Go to part F No - Replace the Brake Booster Mounted Deactivator Switch |
F - VERIFY POWER AT DEACTIVATOR SWITCH HARNESS CONNECTOR | Yes - Go to Part G No - Check for Blown Fuse, or Service Circuit |
G - CHECK FOR OPEN CIRCUIT BETWEEN DEACTIVATOR SWITCH AND MODULE | Yes - You Must have goofed, Repeat Step D No - Service Open Circuit between Cruise Control Module, and Deactivator switch |
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H - CHECK BRAKE SWITCH | No - Go to Part I Yes - Replace Brake Switch |
I - CHECK BRAKE CIRCUIT | Yes - Go to test J No - Service the Brake Lamp Bulbs, or Brake Lamp Circuit |
J - Check for Stuck On Switch | No - Go to Part K Yes - Replace Switch |
K - CHECK ON SWITCH OPERATION | Yes - Go to Part L No - Replace Switch |
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L - Check Vehicle Speed Sender Circuit | Yes - Go to part M No - Check Speed Sender and Circuit |
M - Check for Broken or Binding Cable | Yes - Replace Cruise Control Module No - Replace Cruise Control Module Actuator Cable |
TEST STEP | ACTION TO TAKE |
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A - VERIFY CONDITION ONLY OCCURES WHEN USING CRUISE CONTROL | Yes - Replace Engine No - Go to Part B |
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B - CHECK FOR BINDING IN ACTUATOR CABLE AND THROTTLE BODY LINKAGE | Yes - Go to Part C No - Service Linkage as required |
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C - CHECK SERVO ASSEMBLY | Yes - Replace Cruise Control Module No - Bang head against wall |
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TEST STEP | ACTION TO TAKE |
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A - CHECK SWITCH OPERATION | Yes - Go to Part B No - Replace Switch |
B - CHECK COMMAND SWITCH RETURN CIRCUIT | Yes - Replace Cruise Control Module No - Fix Short Circuit in Switch Return Circuit |
TEST STEP | ACTION TO TAKE |
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A - CHECK SWITCH OPERATION | Yes - Go to Part B No - Replace Switch |
B - CHECK COMMAND SWITCH RETURN CIRCUIT | Yes - Replace Cruise Control Module No - Fix Short Circuit in Switch Return Circuit |
TEST STEP | ACTION TO TAKE |
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A - CHECK SWITCH OPERATION | Yes - Go to Part B No - Replace Switch |
B - CHECK COMMAND SWITCH RETURN CIRCUIT | Yes - Replace Cruise Control Module No - Fix Short Circuit in Switch Return Circuit |
TEST STEP | ACTION TO TAKE |
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A - CHECK BRAKE SWITCH CIRCUIT | Yes - Replace Cruise Control Module No - Check Brake Circuit, Fuses, service as required |
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B - CHECK FOR BINDS IN ACTUATOR CABLE AND THROTTLE BODY ATTACHMENT | Yes - Replace Cruise Control Module No - Service as required |
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TEST STEP | ACTION TO TAKE |
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A - CHECK "OFF" SWITCH OPERATION | Yes - Replace Cruise Control Module No - Replace switch |
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TEST STEP | ACTION TO TAKE |
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A - Check Voltage at Cruise Control Module | Yes - Go to Part C No - Go to Part B |
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B - CHECK CIRCUIT CONTINUITY | Yes - Go to Part 3 No - Service Open Circuit in Loom |
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C - DISPLAY TURN ON TEST | Yes - Replace Cruise Control module No - Replace "CRUISE" Bulb |
TEST STEP | ACTION TO TAKE |
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A - CHECK CRUISE CONTROL TO CLUSTER CIRCUIT | Yes - Service Wiring, and Verify display is Off No - Check Instrument Cluster |