B1D56

B1D56-ADJUSTABLE PEDAL SENSOR CIRCUIT LOW





- When Monitored:
The Adjustable Pedal Motor is in active operation.
- Set Condition:
The Memory Seat Module detects a low signal circuit voltage that is not within voltage specification from the Adjustable Pedal Sensor.

Possible Causes
WIRING HARNESS CONNECTOR/TERMINALS
(G13) ADJUSTABLE PEDALS SENSOR SUPPLY CIRCUIT SHORT TO GROUND
(G13) ADJUSTABLE PEDALS SENSOR SUPPLY CIRCUIT OPEN OR HIGH RESISTANCE
(G14) ADJUSTABLE PEDALS SENSOR SIGNAL CIRCUIT SHORT TO GROUND
(G14) ADJUSTABLE PEDALS SENSOR SIGNAL CIRCUIT OPEN OR HIGH RESISTANCE
ADJUSTABLE PEDALS SENSOR
MEMORY SEAT MODULE

Diagnostic Test
1. DTC IS ACTIVE
Turn the ignition on.
With the scan tool, select view DTCs. Record all DTC information.
With the scan tool, clear stored DTCs.
Cycle the ignition switch off then on.
Move the Adjustable Pedals Switch forward and rearward several times.
With the scan tool, select view DTCs
Is the status active for this DTC?
Yes >> Go To 2
No >> Refer to the Adjustable Pedal System intermittent condition test. Initial Inspection and Diagnostic Overview

2. WIRING HARNESS CONNECTOR/TERMINALS
Turn the ignition off. Disconnect the Memory Seat Module harness connector.
Disconnect the Adjustable Pedals Sensor harness connector. Inspect the wiring harness, connectors and terminals.
Were any problems found?
Yes >> Repair as necessary. Perform APS VERIFICATION TEST - VER 1. APS Verification Test
No >> Go To 3

3. (G13) ADJUSTABLE PEDALS SENSOR SUPPLY CIRCUIT VOLTAGE





Turn the ignition off. Connect the Memory Seat Module harness connector.
Turn the ignition on.
Measure the voltage of the (G13) Adjustable Pedals Sensor Supply circuit at the Adjustable Pedals Sensor harness connector.
Is the voltage between 4.0 and 5.0 volts?
Yes >> Go To 6
No >> Go To 4

4. (G13) ADJUSTABLE PEDALS SENSOR SUPPLY CIRCUIT SHORT TO GROUND





Turn the ignition off. Disconnect the Memory Seat Module harness connector. Measure the resistance between ground and the (G13) Adjustable Pedals Sensor Supply circuit.
Is the resistance below 5 ohms?
Yes >> Repair the (G13) Adjustable Pedals Sensor Supply circuit for a short to ground. Perform APS VERIFICATION TEST - VER 1. APS Verification Test
No >> Go To 5

5. (G13) ADJUSTABLE PEDALS SENSOR SUPPLY CIRCUIT OPEN





Measure the resistance of the (G13) Adjustable Pedals Sensor Supply circuit.
Is the resistance above 5 ohms?
Yes >> Repair the (G13) Adjustable Pedals Sensor Supply circuit for an open. Perform APS VERIFICATION TEST - VER 1. APS Verification Test
No >> Replace and reprogram the Memory Seat Module. Perform APS VERIFICATION TEST - VER 1. APS Verification Test

6. (G14) ADJUSTABLE PEDALS SENSOR SIGNAL CIRCUIT SHORT TO GROUND





Turn the ignition off.
Disconnect the Memory Seat Module harness connector.
Measure the resistance between ground and the (G14) Adjustable Pedals Sensor Signal circuit.
Is the resistance below 5 ohms?
Yes >> Repair the (G14) Adjustable Pedals Sensor Signal circuit for a short to ground. Perform APS VERIFICATION TEST - VER 1. APS Verification Test
No >> Go To 7

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





Measure the resistance of the (G14) Adjustable Pedals Sensor Signal circuit.
Is the resistance above 5 ohms?
Yes >> Repair the (G14) Adjustable Pedals Sensor Signal circuit for an open. Perform APS VERIFICATION TEST - VER 1. APS Verification Test
No >> Go To 8

8. (G14) ADJUSTABLE PEDALS SENSOR SIGNAL CIRCUIT VOLTAGE





Turn the ignition off. Reconnect all connectors. Measure the voltage of the (G14) Adjustable Pedals Sensor Signal circuit by backprobing the Memory Seat Module harness connector.
Is the voltage above 0.5 volts?
Yes >> Replace and reprogram the Memory Seat Module. Perform APS VERIFICATION TEST - VER 1. APS Verification Test
No >> Replace the Adjustable Pedals Sensor. Perform APS VERIFICATION TEST - VER 1. APS Verification Test