B1D4F
B1D4F-ADJUSTABLE PEDAL INHIBIT CIRCUIT LOW
For a complete wiring diagram, refer to the Wiring Information.
- When Monitored:
With the ignition on.
Vehicle is not in reverse.
Cruise control is not active.
- Set Condition:
If the Totally Integrated Power Module (TIPM) detects a low voltage condition on the (A128) Adjustable Pedals Motor Driver circuit.
1. TEST FOR INTERMITTENT CONDITION
NOTE: Look closely at the temperatures at which this Diagnostic Trouble Code (DTC) set. Low battery Voltage can also cause excessive current draw in very hot and very cold ambient temperatures. Make sure the battery can pass a load test before continuing.
1. Turn the ignition on.
2. Using a scan tool, record and erase Diagnostic Trouble Codes (DTCs).
3. Cycle the ignition from on to off.
4. Turn the ignition on.
5. Operate the Adjustable Pedals switch in both positions.
6. With the scan tool, read the TIPM DTCs.
Is the DTC Active at this time?
Yes
- Go To 2
No
- The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. While monitoring the scan tool data relative to this circuit, wiggle test the wiring and connectors. Look for the data to change or for the code to reset during the wiggle test.
- Perform the BODY VERIFICATION TEST. Body Verification Test.
2. CHECK FOR AN ACTIVE DTC WITH THE ADJUSTABLE PEDALS MOTOR DISCONNECTED
1. Turn the ignition off.
2. Disconnect the Adjustable Pedals Motor harness connector.
3. Turn the ignition on.
4. Operate the Adjustable Pedals switch in both positions.
5. With the scan tool, read the TIPM DTCs.
Is the DTC Active at this time?
Yes
- Go To 3
No
- Replace the Adjustable Pedals Motor. Removal.
- Perform the BODY VERIFICATION TEST. Body Verification Test.
3. CHECK FOR A SHORTED ADJUSTABLE PEDALS SWITCH
1. Turn the ignition off.
2. Disconnect the Adjustable Pedals Switch harness connector.
NOTE: Check connectors. Clean and repair as necessary.
3. Remove the Adjustable Pedals Switch. Removal.
NOTE: Adjustable Pedals Switch harness connector shown. Mirror image for Adjustable Pedals Switch component connector.
4. Measure the resistance between the (A128) Adjustable Pedals Motor Driver circuit and the (P205) Adjustable Pedals Motor Forward circuit at the Adjustable Pedals Switch component connector.
5. Measure the resistance between the (A128) Adjustable Pedals Motor Driver circuit and the (Z910) Ground circuit at the Adjustable Pedals Switch component connector.
6. Measure the resistance between the (A128) Adjustable Pedals Motor Driver circuit and the (P206) Adjustable Pedals Motor Rearward circuit at the Adjustable Pedals Switch component connector.
Is the resistance below 10k Ohms for any measurement?
Yes
- Replace the Adjustable Pedals Switch. Removal.
- Perform the BODY VERIFICATION TEST. Body Verification Test.
No
- Go To 4
4. CHECK (A128) ADJUSTABLE PEDALS MOTOR DRIVER CIRCUIT FOR A SHORT TO GROUND
1. Disconnect the TIPM C7 connector.
NOTE: Check connectors. Clean and repair as necessary.
2. Measure the resistance of the (A128) Adjustable Pedals Motor Driver circuit between ground and the Adjustable Pedal Switch harness connector.
Is the resistance below 10k Ohms?
Yes
- Repair the short to ground in the (A128) Adjustable Pedals Motor Driver circuit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.
No
- Go To 5
5. CHECK (A128) ADJUSTABLE PEDALS MOTOR DRIVER CIRCUIT FOR A SHORT TO (P205) ADJUSTABLE PEDALS MOTOR FORWARD CIRCUIT, (Z910) GROUND CIRCUIT, OR TO (P206) ADJUSTABLE PEDALS MOTOR REARWARD CIRCUIT
1. Measure the resistance between the (A128) Adjustable Pedals Motor Driver circuit and the (P205) Adjustable Pedals Motor Forward circuit at the Adjustable Pedals Switch harness connector.
2. Measure the resistance between the (A128) Adjustable Pedals Motor Driver circuit and the (Z910) Ground circuit at the Adjustable Pedals Switch harness connector.
3. Measure the resistance between the (A128) Adjustable Pedals Motor Driver circuit and the (P206) Adjustable Pedals Motor Rearward circuit at the Adjustable Pedals Switch harness connector.
Is the resistance below 10k Ohms for any measurement?
Yes
- Repair all circuits with a resistance below 10k Ohms for a short to the (A128) Adjustable Pedals Motor Driver circuit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.
No
- Replace the Totally Integrated Power Module (TIPM). Totally Integrated Power Module (TIPM) - Removal.
- Perform the BODY VERIFICATION TEST. Body Verification Test.