M20D-FKS ENGINE CONTROL SFI SYSTEM P161009 Control Module Processor (Brake Override System Input Signal) Component Failure
DESCRIPTION
The ECM monitors for malfunction displays during brake override system input information (stop light switch assembly, speed sensor) malfunctions.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory | Note |
|---|---|---|---|---|---|---|
| P161009 | Control Module Processor (Brake Override System Input Signal) Component Failure | Any of the following conditions are met (1 trip detection logic).
·
Malfunction in ECM internal RAM for stop light switch assembly ·
When a malfunction in the ECM internal RAM for the speed sensor causes the slowest speed value among the 4 wheels to be 7 km/h (4.3 mph) or less and the second slowest speed value among the 4 wheels to be 40 km/h (24.9 mph) or higher for 30 seconds |
ECM | - | DTC stored | SAE: P1610 |
MONITOR DESCRIPTION
The ECM compares input signal information for brake override system control calculations for control and monitoring. If the ECM determines a malfunction mode in which brake override system operation conditions are not met, a DTC is stored to indicate the brake override system malfunction.
MONITOR STRATEGY
| Required Sensors/Components | Stop light switch assembly
Speed sensor |
| Frequency of Operation | Continuous |
CONFIRMATION DRIVING PATTERN
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
Turn the GTS off.
Turn the ignition switch off and wait for at least 30 seconds.
Turn the ignition switch to ON [A].
Turn the GTS on.
Start the engine.
Drive the vehicle at 40 km/h (25 mph) or more for 60 seconds or more [B].
- CAUTION:
-
When performing the confirmation driving pattern, obey all speed limits and traffic laws.
Enter the following menus: Powertrain / Engine / Trouble Codes [C].
Read the pending DTCs.
- HINT:
- ·
If a pending DTC is output, the system is malfunctioning.
·If a pending DTC is not output, perform the following procedure.
Enter the following menus: Powertrain / Engine / Utility / All Readiness.
Input the DTC: P161009.
Check the DTC judgment result.
| GTS Display | Description |
|---|---|
| NORMAL | ·
DTC judgment completed ·
System normal |
| ABNORMAL | ·
DTC judgment completed ·
System abnormal |
| INCOMPLETE | ·
DTC judgment not completed ·
Perform driving pattern after confirming DTC enabling conditions |
- HINT:
- ·
If the judgment result is NORMAL, the system is normal.
·If the judgment result is ABNORMAL, the system is malfunctioning.
·If the judgment result is INCOMPLETE, perform steps [A] through [C].
CAUTION / NOTICE / HINT
- HINT:
-
Read Freeze Frame Data using the GTS. The ECM records vehicle and driving condition information as Freeze Frame Data the moment a DTC is stored. When troubleshooting, Freeze Frame Data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.
PROCEDURE
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Clear the DTCs.
- Powertrain > Engine > Clear DTCs
- 50002 372
Turn the ignition switch off and wait for at least 30 seconds.
- Result:
Proceed to NEXT
NEXT
Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.
Enter the following menus: Powertrain / Engine / Trouble Codes.
Read the DTCs.
- Powertrain > Engine > Trouble Codes
- 50001 372
- Result:
Result Proceed to DTCs are not output A DTC P161009 is output B
A
B