2010 Cadillac Truck SRX FWD V6-3.0L Page 55

2010 Cadillac Truck SRX FWD V6-3.0L Page 55

updates the Failure Records.

* The following applies to misfire DTCs:

- If the control module detects a low level or an emission level misfire condition during 2 consecutive trips, the control module illuminates

the MIL.

- If the control module detects a high level or catalyst damaging misfire, the control module flashes the MIL at a rate of once per second.

- If the control module detects a misfire during 2 non-consecutive trips, the stored conditions are compared with the current conditions. The

control module illuminates the MIL when the following conditions occur:

* The engine load is within 20 percent of the previous test that failed.

* The engine speed is within 375 RPM of the previous test that failed.

* The engine coolant temperature is in the same range of the previous test that failed.

* The following applies to fuel trim DTCs:

- If the control module detects a fuel trim condition during 2 consecutive trips, the control module illuminates the MIL.

- If the control module detects a fuel trim condition during 2 non-consecutive trips, the stored conditions are compared with the current

conditions. The control module illuminates the MIL when the following conditions occur:

* The engine load is within 20 percent of the previous test that failed.

* The engine speed is within 375 RPM of the previous test that failed.

* The engine coolant temperature is in the same range of the previous test that failed.

Conditions for Clearing the MIL/DTC - Type A or Type B

* The control module turns OFF the MIL after 4 consecutive ignition cycles that the diagnostic runs and does not fail.

* A current DTC, Last Test Failed, clears when the diagnostic runs and passes.

* A history DTC clears after 40 consecutive warm-up cycles, if no failures are reported by this or any other emission related diagnostic.

* Clear the MIL and the DTC with a scan tool.

Non-Emissions Related DTCs

Action Taken When the DTC Sets - Type C

* The control module stores the DTC information into memory when the diagnostic runs and fails.

* The MIL will not illuminate.

* The control module records the operating conditions at the time the diagnostic fails. The control module stores this information in the Failure

Records.

* The driver information center, if equipped, may display a message.

Conditions for Clearing the DTC - Type C

* A current DTC Last Test Failed clears when the diagnostic runs and passes.

* A history DTC clears after 40 consecutive warm-up cycles, if no failures are reported by this or any other non-emission related diagnostic.

* Clear the DTC with a scan tool.

Action Taken When the DTC Sets - Type D

* The control module will take default actions but no DTC will be stored in Failure Records.

* The MIL or SVS will not illuminate.

Conditions for Clearing the DTC - Type D

Clear the DTC with a scan tool.

B0000

DTC B0000

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System

Check - Vehicle) prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an

overview of the diagnostic approach.

* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure

Instructions) provides an overview of each diagnostic category.

DTC Descriptor

DTC B0000 5A

- Vehicle Speed Information Circuit Not Plausible