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July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Test Description

The numbers below refer to step numbers on the diagnostic table.

  1. 3:  This step tests the ground circuits of the ASM for an open or high resistance.
  2. 5:  This step tests the throttle relaxer assembly.
  3. 6:  This step tests the motor + circuits of the ASM for an open or high resistance.
  4. 7:  This step tests the motor - circuits of the ASM for an open or high resistance.
  5. 8:  This step tests the motor + circuits of the ASM for a short to ground.
  6. 9:  This step tests the motor - circuits of the ASM for a short to ground.
  7. 10:  This step tests the motor + circuits of the ASM for a short to voltage.
  8. 11:  This step tests the motor - circuits of the ASM for a short to voltage.
DTC 65

Step Action Value(s) Yes No
Schematic Reference:  ABS Schematics  
Connector End View Reference:  ABS Connector End Views  
1 Did you perform A Diagnostic System Check - ABS? - Go to Step 2  Go to Diagnostic System Check - ABS 
2 Is DTC 65 set as a current DTC? - Go to Step 3  Go to Diagnostic Aids
3 
  1. Turn OFF the ignition.
  2. Disconnect the accelerator and servo control module (ASM) harness connector.
  3. Measure the resistance between the ground circuits of the ASM and ground. Refer to Circuit Testing in Wiring Systems.
Does the resistance for both circuits measure as specified?		 0-5 Ω Go to Step 4  Go to Step 12 
4
  1. Turn ON the ignition.
  2. Measure the voltage between the battery positive voltage circuits of the ASM and ground. Refer to Circuit Testing in Wiring Systems.
Does the voltage for both circuits measure as specified?		 Battery Voltage Go to Step 5  Go to Step 13 
5 
  1. Turn OFF the ignition.
  2. Disconnect the throttle relaxer assembly harness connector.
  3. Disconnect the cables from the throttle relaxer. Refer to Accelerator Controls Cable Replacement in Engine Controls - 5.7L.
  4. Rotate the pulleys on the throttle relaxer assembly and release. Repeat this three times.
  5. Measure the resistance between the throttle relaxer assembly terminals. Refer to Circuit Testing in Wiring Systems.
Does the resistance measure as specified?		 0.5-10 Ω Go to Step 6  Go to Step 14 
6 
  1. Turn OFF the ignition.
  2. Disconnect the accelerator and servo control module (ASM) and the throttle relaxer assembly harness connectors.
  3. Measure the resistance of the motor + circuits between the ASM and throttle relaxer assembly connectors. Refer to Circuit Testing in Wiring Systems.
Does the resistance for both circuits measure as specified?		 0-5 Ω Go to Step 7  Go to Step 15 
7  Measure the resistance of the motor - circuits between the ASM and throttle relaxer assembly connectors. Refer to Circuit Testing in Wiring Systems.
Does the resistance for both circuits measure as specified?		 0-5 Ω Go to Step 8  Go to Step 16 
8 
  1. Connect the throttle relaxer assembly harness connector.
  2. Measure the resistance of the motor + circuit of the ASM to ground. Refer to Circuit Testing in Wiring Systems.
Does the resistance measure as specified?		 infinite Ω Go to Step 9  Go to Step 15 
9  Measure the resistance of the motor - circuit of the ASM to ground. Refer to Circuit Testing in Wiring Systems.
Does the resistance measure as specified?		 infinite Ω Go to Step 10  Go to Step 16 
10 
  1. Connect the accelerator and servo control module harness connector.
  2. Disconnect the throttle relaxer assembly harness connector.
  3. Turn ON the ignition.
  4. Measure the voltage of the motor + circuit at the throttle relaxer assembly harness connector. Refer to Circuit Testing in Wiring Systems.
Does the voltage measure as specified?		 Greater than 1 V Go to Step 15  Go to Step 11 
11  With the ignition ON, measure the voltage of the motor - circuit of the throttle relaxer assembly harness connector. Refer to Circuit Testing in Wiring Systems.
Does the voltage measure as specified?		 Greater than 1 V Go to Step 16  Go to Step 17 
12 Locate and repair the open or high resistance in the ASM ground circuits. Refer to Wiring Repairs in Wiring Systems.
Did you find and correct the condition?		 - Go to Step 18  -
13 Locate and repair the open, high resistance or short to ground in the ASM battery voltage circuits. Refer to Wiring Repairs in Wiring Systems.
Did you find and correct the condition?		 - Go to Step 18  -
14 Replace the Throttle Relaxer Assembly. Refer to Accelerator and Servo Control Module (ASM) Replacement .
Did you complete the replacement?		 - Go to Step 18  -
15 Locate and repair the open, high resistance or short in the ASM motor + circuit. Refer to Wiring Repairs in Wiring Systems.
Did you find and correct the condition?		 - Go to Step 18  -
16 Locate and repair the open, high resistance or short in the ASM motor - circuit. Refer to Wiring Repairs in Wiring Systems.
Did you find and correct the condition?		 - Go to Step 18  -
17 Replace the Accelerator and Servo Control Module (ASM). Refer to Accelerator and Servo Control Module (ASM) Replacement .
Did you complete the replacement?		 - Go to Step 18  -
18
  1. Use the scan tool in order to clear the DTCs.
  2. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text.
Does the DTC reset?		 - Go to Step 2  System OK
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