Diagnostic Test

1. With the scan tool, read DTCs in all Electronic Control Units (ECUs) and record on the repair order.
2. With the scan tool, run a vehicle Scan Report, or record the Environmental Data related to the DTCs.
3. With the scan tool, erase all DTCs.
4. Turn the ignition off for a minimum of 10.0 seconds.
5. Turn the ignition on.
6. Cycle and hold the Adjustable Pedals Switch forward and rearward.
7. Using the recorded Environmental Data and the When Monitored Conditions, operate the vehicle in the conditions that set the DTC.
8. With the scan tool, read MSMD DTCs.

Is the same DTC active?

Yes 

• Go To  2

No 

• Perform the TESTING FOR AN INTERMITTENT CONDITION diagnostic procedure. Refer to TESTING FOR AN INTERMITTENT CONDITION .

1. Turn the ignition off.
2. Inspect the MSMD harness connector and the Adjustable Pedals Motor harness connector.
3. Check all terminals for broken, bent, pushed out, or corroded terminals.

   Is there damage to any of the connectors or terminals ?

   Yes 

   • Repair as necessary.
   • Perform the APS VERIFICATION TEST. Refer to APS VERIFICATION TEST .

   No 

   • Go To  3

1. Inspect the Adjustable Pedals Assembly for any physical damage or obstructions that may inhibit Adjustable Pedals movement.

   Were any problems found?

   Yes 

   • Repair or replace the Adjustable Pedals Assembly in accordance with the Service Information. Refer to PEDAL(S), BRAKE AND/OR ACCELERATOR, REMOVAL AND INSTALLATION .
   • Perform the APS VERIFICATION TEST. Refer to APS VERIFICATION TEST .

   No 

   • Go To  4

1. The ignition must be off when checking the continuity of a circuit.
2. Isolate the circuit by disconnecting the Electronic Control Unit (ECU) and the component harness connector containing the circuit being tested. Note:  Use the wiring diagram as a guide to follow the path of the circuit.
3. Before measuring the resistance of any circuit, first measure the resistance between the two leads of the DVOM. Note:  The meter leads can add resistance to the measurement value.
4. Connect one lead of the DVOM to the circuit being tested at the component harness connector.
5. Connect the other lead to the circuit being tested at the ECU harness connector and measure the resistance of the circuit.

Is the resistance below 3.0 Ohms?

Yes 

• Go To  5

No 

• Repair the (P205) Adjustable Pedals Motor Forward circuit for an open or high resistance.
• Perform the APS VERIFICATION TEST. Refer to APS VERIFICATION TEST .

1. The ignition must be off when checking the continuity of a circuit.
2. Isolate the circuit by disconnecting the Electronic Control Unit (ECU) and the component harness connector containing the circuit being tested. Note:  Use the wiring diagram as a guide to follow the path of the circuit.
3. Before measuring the resistance of any circuit, first measure the resistance between the two leads of the DVOM. Note:  The meter leads can add resistance to the measurement value.
4. Connect one lead of the DVOM to the circuit being tested at the component harness connector.
5. Connect the other lead to the circuit being tested at the ECU harness connector and measure the resistance of the circuit.

Is the resistance below 3.0 Ohms?

Yes 

• Go To  6

No 

• Repair the (P206) Adjustable Pedals Motor Rearward circuit for an open or high resistance.
• Perform the APS VERIFICATION TEST. Refer to APS VERIFICATION TEST .

1. The ignition must be off when checking the continuity of a circuit.
2. Isolate the circuit by disconnecting the Electronic Control Unit (ECU) and the component harness connector containing the circuit being tested. Note:  Use the wiring diagram as a guide to follow the path of the circuit.
3. Before measuring the resistance of any circuit, first measure the resistance between the two leads of the DVOM. Note:  The meter leads can add resistance to the measurement value.
4. Connect one lead of the DVOM to the circuit being tested at the component harness connector.
5. Connect the other lead to the circuit being tested at the ECU harness connector and measure the resistance of the circuit.

Is the resistance below 3.0 Ohms?

Yes 

• Go To  7

No 

• Repair the (G13) Adjustable Pedals Sensor Supply circuit for an open or high resistance.
• Perform the APS VERIFICATION TEST. Refer to APS VERIFICATION TEST .

1. The ignition must be off when checking the continuity of a circuit.
2. Isolate the circuit by disconnecting the Electronic Control Unit (ECU) and the component harness connector containing the circuit being tested. Note:  Use the wiring diagram as a guide to follow the path of the circuit.
3. Before measuring the resistance of any circuit, first measure the resistance between the two leads of the DVOM. Note:  The meter leads can add resistance to the measurement value.
4. Connect one lead of the DVOM to the circuit being tested at the component harness connector.
5. Connect the other lead to the circuit being tested at the ECU harness connector and measure the resistance of the circuit.

Is the resistance below 1.0 Ohms?

Yes 

• Go To  8

No 

• Repair the (P989) Sensor Return circuit for an open or high resistance.
• Perform the APS VERIFICATION TEST. Refer to APS VERIFICATION TEST .

1. Measure the resistance between the (P205) Adjustable Pedals Motor Forward circuit and (P206) Adjustable Pedals Motor Rearward circuit at the Adjustable Pedals Motor component connector.

   Is the resistance below 100.0 Ohms?

   Yes 

   • Go To  9

   No 

   • Replace the Adjustable Pedals Motor in accordance with the Service Information. Refer to PEDAL(S), BRAKE AND/OR ACCELERATOR, REMOVAL AND INSTALLATION .
   • Perform the APS VERIFICATION TEST. Refer to APS VERIFICATION TEST .

1. Disconnect all MSMD harness connectors.
2. Disconnect all related in-line harness connections (if equipped).
3. Disconnect the related component harness connectors.
4. Inspect harness connectors, component connectors, and all male and female terminals for the following conditions:
   • Proper connector installation.
   • Damaged connector locks.
   • Corrosion.
   • Other signs of water intrusion.
   • Weather seal damage (if equipped).
   • Bent terminals.
   • Overheating due to a poor connection (terminal may be discolored due to excessive current draw).
   • Terminals that have been pushed back into the connector cavity.
   • Check for spread terminals and verify proper terminal tension.

   Repair any conditions that are found.

5. Connect all MSMD harness connectors. Be certain that all harness connectors are fully seated and the connector locks are fully engaged.
6. Connect all in-line harness connectors (if equipped). Be certain that all connectors are fully seated and the connector locks are fully engaged.
7. Connect all related component harness connectors. Be certain that all connectors are fully seated and the connector locks are fully engaged.
8. With the scan tool, erase DTCs.
9. Test drive or operate the vehicle in accordance with the when monitored and set conditions.
10. With the scan tool, read MSMD DTCs.

    Is the same DTC active?

    Yes 

    • Replace and program the Memory Seat Module-Driver (MSMD) in accordance with the Service Information. Refer to MODULE, MEMORY SEAT (MSM), REMOVAL AND INSTALLATION .
    • Perform the APS VERIFICATION TEST. Refer to APS VERIFICATION TEST .

    No 

    • Repairing the wiring harness or connections corrected the problem.
    • Perform the APS VERIFICATION TEST. Refer to APS VERIFICATION TEST .