Conditions for Clearing the DTC
WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- The DTC will be current for as long as the fault is present.
- When the fault is no longer present the DTC will be a history status code.
- The history DTC will be cleared after 100 error free ignition cycles, or by using the scan tool clearing DTCs feature.
DTC B2425 or B2430
| Step | Action | Values | Yes | No |
|---|---|---|---|---|
| Schematic Reference: Driver Seat Schematics , Passenger Seat Schematics Connector End View Reference: Power Seat Systems Connector End Views |
||||
| 1 | Did you perform the Power Seat Diagnostic System Check? | - | Go to Step 2 | Go to Diagnostic Starting Point - Seats |
| 2 | Verify the condition is present. Does the system operate normally? |
- | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
| 3 |
|
- | Go to Step 7 | Go to Step 4 |
| 4 | Using a DMM test for continuity to ground at the heater element control circuit terminals in the DSM harness connector. Refer to Circuit Testing
in Wiring Systems. Is continuity to ground present on either of the heater element control circuits? |
- | Go to Step 8 | Go to Step 5 |
| 5 | Using a DMM measure the resistance through the seat heater elements from the voltage supply circuit terminal to each of the control circuit terminals in the DSM harness connector. Refer to Circuit Testing
in Wiring Systems. Are the measurements within the specified values? |
1.5-5.5 Ω | Go to Step 10 | Go to Step 6 |
| 6 | Test the voltage supply and control circuits to the affected heater element for an open or high resistance. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
- | Go to Step 13 | Go to Step 9 |
| 7 | Repair the voltage supply or control circuit to the affected heater element for a short to voltage. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Is the repair complete? |
- | Go to Step 13 | - |
| 8 | Repair the voltage supply or control circuit to the affected heater element for a short to ground. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Is the repair complete? |
- | Go to Step 13 | - |
| 9 | Inspect for poor connections at the heater element connectors. Refer to Testing for Intermittent Conditions and Poor Connections
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
- | Go to Step 13 | Go to Step 11 |
| 10 | Inspect for poor connections at the DSM connectors. Refer to Testing for Intermittent Conditions and Poor Connections
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
- | Go to Step 13 | Go to Step 12 |
| 11 | Replace the affected seat heater element. Refer to Seat Back Heater Element Replacement - Front and to Seat Cushion Heater Element Replacement - Front . Is the repair complete? |
- | Go to Step 13 | - |
| 12 | Replace the DSM. Refer to Memory Seat Control Module Replacement . Is the repair complete? |
- | Go to Step 13 | - |
| 13 |
|
- | Go to Step 3 | System OK |