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B1D67






B1D67-ADJUSTABLE PEDAL CONTROL CIRCUIT PERFORMANCE





For a complete wiring diagram, refer to the Wiring Information.

- When Monitored:
Continuously.

- Set Condition:
The Adjustable Pedals switch is pressed three times in opposite directions (e.g. either, forward, rearward, forward, or rearward, forward, rearward) and each switch activation is for at least one second and the Memory Seat Module (MSM) does not detect Adjustable Pedals Motor rotation in either direction.





1. INSPECT THE ADJUSTABLE PEDALS ASSEMBLY FOR DAMAGE

NOTE: If present, diagnose and repair Diagnostic Trouble Code (DTC) B1D56-Adjustable Pedal Sensor Circuit Low or B1D57-Adjustable Pedal Sensor Circuit High before proceeding.

1. Turn the ignition off.
2. Inspect the Adjustable Pedals assembly for damage.

Is the assembly damaged?

Yes

- Replace the Adjustable Pedals assembly.
- Perform the APS VERIFICATION TEST. APS Verification Test.

No

- Go To 2

2. INSPECT FOR OBSTRUCTION IN PATH OF ADJUSTABLE PEDALS
1. Inspect for anything that would prevent the Adjustable Pedals from moving to each end-stop.

Is anything present that would prevent the Adjustable Pedals from moving to each end-stop?

Yes

- Repair as necessary.
- Perform the APS VERIFICATION TEST. APS Verification Test.

No

- Go To 3

3. TEST FOR INTERMITTENT CONDITION
1. Turn the ignition on.
2. Using a scan tool, record and erase DTCs.
3. Cycle the ignition from on to off.
4. Turn the ignition on.

NOTE: Do not adjust the pedals against an end-stop when performing the following.

5. Press the Adjustable Pedals switch in one direction for at least one second then release the switch. Repeat three times consecutively, but press the switch in the opposite direction each time.
6. Using a scan tool, read DTCs.

Does the scan tool display DTC B1D67-ADJUSTABLE PEDAL CONTROL CIRCUIT PERFORMANCE?

Yes

- Go To 4

No

- The conditions that caused this code to set are not present at this time. Repeat Step 5, beginning in direction opposite of that previously selected. If DTC now is active, Go To 4. Otherwise, perform the APS INTERMITTENT CONDITION TEST. Testing and Inspection.

4. CHECK (P205) ADJUSTABLE PEDALS MOTOR FORWARD AND (P206) ADJUSTABLE PEDALS MOTOR REARWARD CIRCUIT FUNCTION




1. Turn the ignition off.
2. Disconnect the Adjustable Pedals Motor harness connector.

NOTE: Check connectors. Clean and repair as necessary.

3. Connect a 12-volt test light between the (P205) Adjustable Pedals Motor Forward circuit and the (P206) Adjustable Pedals Motor Rearward circuit at the Adjustable Pedals Motor harness connector.
4. Turn the ignition on.
5. While monitoring the test light, operate the Adjustable Pedals switch in both directions.

Does the test light illuminate with the Adjustable Pedals switch engaged?

Yes

- Go To 5

No

- Go To 8

5. CHECK ADJUSTABLE PEDALS MOTOR OPERATION




1. Turn the ignition off.
2. Reconnect the Adjustable Pedals Motor harness connector.
3. Disconnect the MSM C1 connector.

NOTE: Check connectors. Clean and repair as necessary.

4. Check motor operation in both directions as follows:NOTE: Do not adjust the pedals against an end-stop when performing the following.

To drive pedals forward:
- Connect one end of a fused jumper wire to battery voltage and the other end to the (P205) Adjustable Pedals Motor Forward circuit at the MSM C1 harness connector.
- Connect an ammeter between ground and the (P206) Adjustable Pedals Motor Rearward circuit at the MSM C1 harness connector.
- Disconnect before reaching the end-stop.

To drive pedals rearward:
- Connect one end of a fused jumper wire to battery voltage and the other end to the (P206) Adjustable Pedals Motor Rearward circuit at the MSM C1 harness connector.
- Connect an ammeter between ground and the (P205) Adjustable Pedals Motor Forward circuit at the MSM C1 harness connector.
- Disconnect before reaching the end-stop.

NOTE: The Adjustable Pedals Motor should be operational in both directions and the ammeter should read 0.9 to 1.5 amps.

Does the motor operate as specified?

Yes

- Go To 6

No

- Check (P205) Adjustable Pedals Motor Forward circuit and (P206) Adjustable Pedals Motor Rearward circuit for high resistance. If circuits are okay, replace the Adjustable Pedals Motor.
- Perform the APS VERIFICATION TEST. APS Verification Test.

6. CHECK ADJUSTABLE PEDALS SENSOR OPERATION




1. Reconnect the MSM C1 harness connector.
2. Turn the ignition on.
3. Using a scan tool, erase DTCs.
4. Cycle the ignition from on to off.
5. Connect the positive lead of a lab scope to the (G13) Adjustable Pedals Sensor Supply circuit and the negative lead to the (G493) Position Sensor Ground circuit the MSM C2 harness connector. Set the lab scope range to 20 volts and time to 20 ms divisions.
6. Turn the ignition on.

NOTE: Do not adjust the pedals against an end-stop when performing the following.

7. Operate the Adjustable Pedals switch in one direction.

NOTE: If the sensor is functioning normally the scope will display a continuously cycling square wave when operating the pedals. If the module fails to detect sensor operation it will stop pedal operation in approximately two seconds.

Does the sensor operate as specified?

Yes

- Leave Scope Connected. Go To 7

No

- Replace the Adjustable Pedals Sensor.
- Perform the APS VERIFICATION TEST. APS Verification Test.

7. CHECK ADJUSTABLE PEDALS SENSOR OPERATION IN OPPOSITE DIRECTION




1. Using a scan tool, erase DTCs if present.
2. Cycle the ignition from on to off.
3. Turn the ignition on.

NOTE: Do not adjust the pedals against an end-stop when performing the following.

4. Operate the Adjustable Pedals switch in the direction opposite of that previously selected.

NOTE: If the sensor is functioning normally the scope will display a continuously cycling square wave when operating the pedals. If the module fails to detect sensor operation it will stop pedal operation in approximately two seconds.

Does the sensor operate as specified?

Yes

- Replace the Memory Seat Module (MSM).
- Perform the APS VERIFICATION TEST. APS Verification Test.

No

- Replace the Adjustable Pedals Sensor.
- Perform the APS VERIFICATION TEST. APS Verification Test.

8. CHECK THE (P205) ADJUSTABLE PEDALS MOTOR FORWARD CIRCUIT FOR AN OPEN




1. Turn the ignition off.
2. Disconnect the MSM C1 harness connector.
3. Measure the resistance of the (P205) Adjustable Pedals Motor Forward circuit between the MSM C1 harness connector and the Adjustable Pedals Motor connector.

Is the resistance below 5.0 Ohms?

Yes

- Go To 9

No

- Repair the (P205) Adjustable Pedals Motor Forward circuit for an open.
- Perform the APS VERIFICATION TEST. APS Verification Test.

9. CHECK THE (P206) ADJUSTABLE PEDALS MOTOR REARWARD CIRCUIT FOR AN OPEN




1. Measure the resistance of the (P206) Adjustable Pedals Motor Rearward circuit between the MSM C1 connector and the Adjustable Pedals Motor connector.

Is the resistance below 5.0 Ohms?

Yes

- Replace the Memory Seat Module (MSM).
- Perform the APS VERIFICATION TEST. APS Verification Test.

No

- Repair the (P206) Adjustable Pedals Motor Rearward circuit for an open.
- Perform the APS VERIFICATION TEST. APS Verification Test.

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