Pinpoint Tests AI: The Stop Safely Now Warning Is Inoperative/Always On
Instrumentation, Message Center and Warning Chimes
Pinpoint Tests
Pinpoint Test AI: The STOP SAFELY NOW Warning Is Inoperative/Always On (Hybrid)
Normal Operation
The stop safely now display informs the driver that there is a problem with the hybrid electrical system and that an impending vehicle shut down is about to occur. The Instrument Cluster (IC) receives the hazard input from a message over the High Speed Controller Area Network (HS-CAN) communication bus from the PCM, the Transmission Control Module (TCM) and the Battery Control Module (BCM).
NOTE: The IC turns on both the hazard warning indicator in the IC and displays the stop safely now warning simultaneously when a problem or fault has been detected in any of the 3 modules (PCM, TCM or BCM).
If the hazard status message is missing from the PCM or if the data is deemed invalid by the IC for more than 5 seconds, the IC sets DTC U0100 in continuous memory. If the hazard status message is missing from the TCM or if the data is deemed invalid by the IC for more than 5 seconds, the IC sets DTC U0101 in continuous memory. If the hazard status message is missing from the BCM or if the data is deemed invalid by the IC for more than 5 seconds, the IC sets DTC U0111 in continuous memory.
If any one of the 3 messages are missing with the other two valid, the IC defaults the STOP SAFELY NOW warning to the last observable state (on or off). If all 3 messages are missing and the IC does not see an ignition switch transition into RUN/START, the IC defaults the STOP SAFELY NOW warning to the last observable state (on or off).
This pinpoint test is intended to diagnose the following:
- PCM
- TCM concern
- BCM concern
- IC
PINPOINT TEST AI: THE STOP SAFELY NOW WARNING IS INOPERATIVE/ALWAYS ON (HYBRID)
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AI1 RETRIEVE THE RECORDED DTCs FROM THE PCM KOEO SELF-TEST
- Check for recorded PCM DTCs from the Key ON Engine OFF (KOEO) self-test.
- Are any PCM DTCs recorded?
Yes
REFER to Computers and Control Systems Information.
No
GO to AI2.
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AI2 RETRIEVE THE RECORDED DTCs FROM THE TCM SELF-TEST
- Check for recorded TCM DTCs from the self-test.
- Are any TCM DTCs recorded?
Yes
REFER to Computers and Control Systems Information.
No
GO to AI3.
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AI3 RETRIEVE THE RECORDED DTCs FROM THE BCM SELF-TEST
- Check for recorded BCM DTCs from the self-test.
- Are any BCM DTCs recorded?
Yes
REFER to Body Control Systems.
No
GO to AI4.
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AI4 CONFIRM THE STOP SAFELY NOW WARNING OPERATION
- Ignition ON.
- Observe the STOP SAFELY NOW warning operation.
- Is the STOP SAFELY NOW warning always displayed?
Yes
GO to AI5.
No
GO to AI6.
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AI5 VERIFY THE OPERATION OF THE HAZARD WARNING INDICATOR
NOTE: Both the hazard warning indicator and the STOP SAFELY NOW warning are displayed when a fault condition is detected.
- Observe the hazard warning indicator operation.
- Is the hazard warning indicator illuminated?
Yes
GO to Pinpoint Test AE. Pinpoint Tests AE: The Hazard Warning Indicator Is Inoperative
No
INSTALL a new IC. REFER to Instrument Cluster (IC) Instrument Cluster (IC). TEST the system for normal operation.
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AI6 RETRIEVE THE RECORDED DTCs FROM THE IC SELF-TEST
- Check for recorded IC DTCs from the self-test.
- Are any IC DTCs recorded?
Yes
REFER to DTC Charts. Instrumentation, Message Center and Warning Chimes
No
INSTALL a new IC. REFER to Instrument Cluster (IC) Instrument Cluster (IC). TEST the system for normal operation.
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