B1D56

B1D56-ADJUSTABLE PEDAL SENSOR CIRCUIT LOW



- When Monitored:
Continuously.

- Set Condition:
The Memory Seat Module detects a low signal circuit voltage that is not within voltage specification from the Adjustable Pedals Sensor.





1. CHECK FOR DTC B1D56-ADJUSTABLE PEDAL SENSOR CIRCUIT LOW

NOTE: This DTC must be active for the results of this test to be valid.

1. Turn the ignition on.
2. With the scan tool, record and erase DTCs.
3. Cycle the ignition switch from off to on.
4. Cycle the Adjustable Pedals Switch forward and rearward.
5. With the scan tool, read DTCs.

Does the scan tool display: B1D56-ADJUSTABLE PEDAL SENSOR CIRCUIT LOW?

Yes

- Go To 2

No

- Perform the APS INTERMITTENT CONDITION TEST. Testing and Inspection.

2. CHECK CONNECTOR/TERMINAL FOR DAMAGE

NOTE: Check all terminals for broken, bent, pushed out, or corroded terminals.

1. Turn the ignition off.
2. Inspect the Memory Seat Module C1 harness connector, Adjustable Pedals Sensor, and Adjustable Pedals Sensor harness connector.

Is the Adjustable Pedals Sensor or any of the connectors/terminals damaged?

Yes

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

No

- Go To 3

3. CHECK (G13) ADJUSTABLE PEDALS SENSOR SUPPLY CIRCUIT FOR A SHORT TO GROUND




1. Disconnect the Memory Seat Module C1 harness connector.
2. Disconnect the Adjustable Pedals Sensor harness connector.
3. Using a 12-volt test light connected to 12-volts, probe the (G13) Adjustable Pedals Sensor Supply circuit at the Memory Seat Module C1 harness connector.

Does the test light illuminate brightly?

Yes

- Repair the (G13) Adjustable Pedals Sensor Supply circuit for a short to ground.
- Perform the APS VERIFICATION TEST. APS Verification Test.

No

- Go To 4

4. CHECK (G13) ADJUSTABLE PEDALS SENSOR SUPPLY CIRCUIT FOR AN OPEN




1. Connect a jumper wire between the (G13) Adjustable Pedals Sensor Supply circuit and ground at the Adjustable Pedals Sensor harness connector.
2. Using a 12-volt test light connected to 12-volts, probe the (G13) Adjustable Pedals Sensor Supply circuit at the Memory Seat Module C1 harness connector.

Does the test light illuminate brightly?

Yes

- Go To 5

No

- Repair the (G13) Adjustable Pedals Sensor Supply circuit for an open.
- Perform the APS VERIFICATION TEST. APS Verification Test.

5. CHECK (G14) ADJUSTABLE PEDALS SENSOR SIGNAL CIRCUIT FOR A SHORT TO GROUND




1. Using a 12-volt test light connected to 12-volts, probe the (G14) Adjustable Pedals Sensor Signal circuit at the Memory Seat Module C1 harness connector.

Does the test light illuminate brightly?

Yes

- Repair the (G14) Adjustable Pedals Sensor Signal circuit for a short to ground.
- Perform the APS VERIFICATION TEST. APS Verification Test.

No

- Go To 6

6. CHECK (G14) ADJUSTABLE PEDALS SENSOR SIGNAL CIRCUIT FOR AN OPEN




1. Connect a jumper wire between the (G14) Adjustable Pedals Sensor Signal circuit and ground at the Adjustable Pedals Sensor harness connector.
2. Using a 12-volt test light connected to 12-volts, probe the (G14) Adjustable Pedals Sensor Signal circuit at the Memory Seat Module C1 harness connector.

Does the test light illuminate brightly?

Yes

- Go To 7

No

- Repair the (G14) Adjustable Pedals Sensor Signal circuit for an open.
- Perform the APS VERIFICATION TEST. APS Verification Test.

7. CHECK (G13) ADJUSTABLE PEDALS SENSOR SUPPLY CIRCUIT VOLTAGE




1. Connect the Memory Seat Module C1 harness connector.
2. Ignition on, engine not running.
3. Measure the voltage between the (G13) Adjustable Pedals Sensor Supply circuit and ground at the Adjustable Pedals Sensor harness connector.

Is the voltage between 4.0 and 5.0 volts?

Yes

- Go To 8

No

- Replace and reprogram the Memory Seat Module.
- Perform the APS VERIFICATION TEST. APS Verification Test.

8. CHECK ADJUSTABLE PEDALS SENSOR SIGNAL CIRCUIT VOLTAGE
1. Turn the ignition off to the lock position.
2. Connect a jumper wire between cavity 1 and cavity 2 in the Adjustable Pedals Sensor harness connector.
3. Ignition on, engine not running.
4. With the scan tool, erase DTCs.
5. Cycle the ignition switch from off to on.
6. Cycle the Adjustable Pedals Switch forward and rearward.
7. With the scan tool, read DTCs.

Does the scan tool display: B1D57-ADJUSTABLE PEDAL SENSOR CIRCUIT HIGH?

Yes

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

No

- Replace and reprogram the Memory Seat Module.
- Perform the APS VERIFICATION TEST. APS Verification Test.