B1D56
B1D56-ADJUSTABLE PEDAL SENSOR CIRCUIT LOW
For the Adjustable Pedal System circuit diagram. Refer to SCHEMATICS AND DIAGRAMS.
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
- CONNECTOR/TERMINAL DAMAGE
- (G13) ADJUSTABLE PEDALS SENSOR SUPPLY CIRCUIT SHORTED TO GROUND, OR OPEN
- (G14) ADJUSTABLE PEDALS SENSOR SIGNAL CIRCUIT SHORTED TO GROUND, OR OPEN
- ADJUSTABLE PEDALS SENSOR - INTERNAL FAULT
- MEMORY SEAT MODULE - INTERNAL FAULT
Diagnostic Test
1. CHECK FOR DTC BlD56-ADJUSTABLE PEDAL SENSOR CIRCUIT LOW
NOTE: This DTC must be active for the results of this test to be valid.
Turn the ignition on.
With the scan tool, record and erase DTCs.
Cycle the ignition switch from off to on.
Cycle the Adjustable Pedals Switch forward and rearward.
With the scan tool, read DTCs
Does the scan tool display: BlD56-ADJUSTABLE PEDAL SENSOR CIRCUIT LOW?
Yes >> Go To 2
No >> Refer to the INTERMITTENT CONDITION diagnostic Procedure.
Perform APS VERIFICATION TEST - VER 1. APS Verification Test
2. CHECK CONNECTOR/TERMINAL FOR DAMAGE
NOTE: Check all terminals for broken, bent, pushed out, or corroded terminals.
Turn the ignition off.
Inspect the Memory Seat Module 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 APS VERIFICATION TEST - VER 1. APS Verification Test
No >> Go To 3
3. CHECK (G13) ADJUSTABLE PEDALS SENSOR SUPPLY CIRCUIT FOR A SHORT TO GROUND
Turn the ignition off.
Disconnect the Memory Seat Module harness connector.
Disconnect the Adjustable Pedals Sensor harness connector.
Using a 12-volt test light connected to 12-volts, probe the (G13) Adjustable Pedals Sensor Supply circuit.
Does the test light illuminate brightly?
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 4
4. CHECK (G13) ADJUSTABLE PEDALS SENSOR SUPPLY CIRCUIT FOR AN OPEN
Turn the ignition off.
Disconnect the Memory Seat Module harness connector.
Disconnect the Adjustable Pedals Sensor harness connector.
Connect a jumper wire between the (G13) Adjustable Pedals Sensor Supply circuit and ground.
Using a 12-volt test light connected to 12-volts, probe the (G13) Adjustable Pedals Sensor Supply circuit.
Does the test light illuminate brightly
Yes >> Go To 5
No >> Repair the (G13) Adjustable Pedals Sensor Supply circuit for an open.
Perform APS VERIFICATION TEST - VER 1. APS Verification Test
5. CHECK (G14) ADJUSTABLE PEDALS SENSOR SIGNAL CIRCUIT FOR A SHORT TO GROUND
Turn the ignition off.
Disconnect the Memory Seat Module harness connector.
Disconnect the Adjustable Pedals Sensor harness connector.
Using a 12-volt test light connected to 12-volts, probe the (G14) Adjustable Pedals Sensor Signal circuit.
Does the test light illuminate brightly?
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 6
6. CHECK (G14) ADJUSTABLE PEDALS SENSOR SIGNAL CIRCUIT FOR AN OPEN
Turn the ignition off.
Disconnect the Memory Seat Module harness connector.
Disconnect the Adjustable Pedals Sensor harness connector.
Connect a jumper wire between the (G14) Adjustable Pedals Sensor Signal circuit and ground.
Using a 12-volt test light connected to 12-volts, probe the (G14) Adjustable Pedals Sensor Signal circuit.
Does the test light illuminate brightly?
Yes >> Go To 7
No >> Repair the (G14) Adjustable Pedals Sensor Signal circuit for an open.
Perform APS VERIFICATION TEST - VER 1. APS Verification Test
7. CHECK (G13) ADJUSTABLE PEDALS SENSOR SUPPLY CIRCUIT VOLTAGE
Turn the ignition off.
Disconnect the Adjustable Pedals Sensor harness connector.
Measure the voltage between the (G13) Adjustable Pedals Sensor Supply circuit and ground.
Is the voltage between 4.0 and 5.0 volts?
Yes >> Go To 8
No >> Replace and reprogram the Memory Seat Module in accordance with the Service Information.
Perform APS VERIFICATION TEST - VER 1. APS Verification Test
8. CHECK (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 in the Memory Seat Module harness connector.
Is the voltage above 0.5 volts?
Yes >> Replace and reprogram the Memory Seat Module in accordance with the Service Information.
Perform APS VERIFICATION TEST - VER 1. APS Verification Test
No >> Replace the Adjustable Pedals Sensor in accordance with the Service Information.
Perform APS VERIFICATION TEST - VER 1. APS Verification Test