Circuit Description
The body control module (PZM) determines the fuel level by calculating the resistance of the fuel level sender circuit. The PZM then sends the fuel level over the class 2 serial data line to the modules that require the data.
Conditions for Setting the DTC
| • | DTC B0533 does not set if DTCs B1982 or B1983 are current. |
| • | The PZM determines that battery positive voltage is present in the fuel level sender circuit. |
Action Taken When the DTC Sets
| • | The PZM sends a class 2 message to the PCM that the fuel level is too low. |
| • | The PZM sets B0533 as current. |
Conditions for Clearing the DTC
| • | When the PZM determines that battery positive voltage is no longer present, the PZM changes the DTC to history. |
| • | The DTC clears after 50 consecutive ignition cycles if the condition is no longer present. |
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Was the Body Control Module Diagnostic System Check performed? | -- | Go to Step 2 | |
2 |
Is the DTC still present? | -- | Go to Step 3 | |
3 |
Is voltage present? | -- | Go to Step 4 | Go to Step 5 |
4 | Repair the short to battery positive voltage (B+) on CKT 30 (PPL) or CKT 552 (BLK). Is the repair complete? | -- | Go to Step 6 | -- |
5 | Replace the PZM. Refer to Body Control Module Replacement . Is the repair complete? | -- | Go to Step 6 | -- |
6 |
Is the repair complete? | -- | -- |
