B1D4F

B1D4F-ADJUSTABLE PEDAL INHIBIT CIRCUIT LOW





When Monitored
With the ignition on.

Set Condition
When the Front Control Module fails the Adjustable Pedal Inhibit Relay circuit.

Possible Causes
- TERMINAL/CONNECTOR DAMAGE
- ADJUSTABLE PEDALS RELAY
- ADJUSTABLE PEDALS RELAY CONTROL CIRCUIT SHORTED TO VOLTAGE, GROUND, OR OPEN
- FRONT CONTROL MODULE
- INTEGRATED POWER MODULE

Diagnostic Test
1. CHECK FOR A DTC B1D4F-ADJUSTABLE PEDAL INHIBIT 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, read and record DTCs.
With the scan tool, read and record Freeze Frame information.
With the scan tool, erase DTCs.
Cycle the ignition switch from off to on.
With the scan tool, read and record DTCs
Does the scan tool display: B1D4F-ADJUSTABLE PEDAL INHIBIT CIRCUIT LOW?
Yes >> Go To 2
No >> The condition that caused the symptom is currently not present. Inspect the related wiring for a possible intermittent condition. Look for any chafed, pierced, pinched, or partially broken wires.
Perform APS VERIFICATION TEST - VER 1. APS Verification Test
2. CHECK THE TERMINALS/CONNECTORS FOR DAMAGE

NOTE: Check all related wiring for bruised, chafed, pierced, or partially broken wires.

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

Turn the ignition off. Visually inspect the wiring for damage.
Were any problems found?
Yes >> Repair as necessary Perform APS VERIFICATION TEST - VER 1. APS Verification Test
No >> Go To 3
3. SWAP OUT THE ADJUSTABLE PEDALS RELAY
Turn the ignition off.
Install a known good relay in place of the Adjustable Pedals Relay.
Turn the ignition on.
With the scan tool, erase DTCs.
Cycle the ignition switch from off to on.
With the scan tool, read and record DTCs
Does the scan tool display: BlD4F-ADJUSTABLE PEDAL INHIBIT CIRCUIT LOW?
Yes >> Go To 4.
No >> Replace the Adjustable Pedals Relay.
Perform APS VERIFICATION TEST - VER 1. APS Verification Test
4. CHECK THE VOLTAGE ON THE FUSED B(+) CIRCUIT FOR THE ADJUSTABLE PEDALS RELAY
Turn the ignition off.
Remove the Adjustable Pedals Relay from the IPM.
Measure the voltage of the internal Fused B(+) circuit at the IPM.
Is the voltage above 10 volts?
Yes >> Go To 5.
No >> Replace the IPM.
Perform APS VERIFICATION TEST - VER 1. APS Verification Test
5. CHECK THE ADJUSTABLE PEDALS RELAY CONTROL CIRCUIT FOR A SHORT TO GROUND
Disconnect the Front Control Module harness connector.
Using a 12-volt test light connected to 12-volts, check the Adjustable Pedals Relay Control circuit.
Does the test light illuminate brightly?
Yes >> Repair the Adjustable Pedals Relay Control circuit for a short to ground.
Perform APS VERIFICATION TEST - VER 1. APS Verification Test
No >> Go To 6.
6. CHECK THE ADJUSTABLE PEDALS RELAY CONTROL CIRCUIT FOR A SHORT TO VOLTAGE
Turn the ignition on.
Using a 12-volt test light connected to ground, check the Adjustable Pedals Relay Control circuit.
Does the test light illuminate brightly?
Yes >> Repair the Adjustable Pedals Relay Control circuit for a short to voltage.
Perform APS VERIFICATION TEST - VER 1. APS Verification Test
No >> Go To 7
7. CHECK THE ADJUSTABLE PEDALS RELAY CONTROL CIRCUIT FOR AN OPEN
Turn the ignition off.
Connect a jumper wire between the Adjustable Pedals Relay Control circuit and ground.
Using a 12-volt test light connected to 12-volts, check the Adjustable Pedals Relay Control circuit.
Does the test light illuminate brightly
Yes >> Replace the Front Control Module.
Perform APS VERIFICATION TEST - VER 1. APS Verification Test
No >> Repair the Adjustable Pedals Relay Control circuit for an open.
Perform APS VERIFICATION TEST - VER 1. APS Verification Test