Hybrid Powertrain Control Module

DIAGNOSIS SYSTEM (HPCM)

On Board Diagnosis Function


ON BOARD DIAGNOSIS (OBD) SYSTEM FUNCTIONS

The on board diagnosis (OBD) system includes the following functions.






BULB CHECK MODE

Description
This function checks for damage (burn-out, open circuit, etc.) of the hybrid system warning lamp and 12-volt battery charge warning lamp.
1.Turn ignition switch OFF.
2.Check that the hybrid system warning lamp and 12-volt battery charge warning lamp turn ON.
If the hybrid system warning lamp or 12-volt battery charge warning lamp does not turn ON, check the circuit of the hybrid system warning lamp or 12-volt battery charge warning lamp. {LINK_TO_MANY:0000000007016993}{LINK_TO_MANY:0000000007016994}, "Component
Function Check".

MALFUNCTION WARNING MODE

Description
When HPCM detects a malfunction in the components of the hybrid system, it activates the hybrid system warning lamp. If a malfunction in the DC/DC converter is detected, the 12-volt battery charge warning lamp is activated, notifying the driver of the malfunction.
Operation Procedure
1.Turn ignition switch OFF.
2.Check that the hybrid system warning lamp and 12-volt battery charge warning lamp turn ON.
If the hybrid system warning lamp or 12-volt battery charge warning lamp does not turn ON, check the circuit of the hybrid system warning lamp or 12-volt battery charge warning lamp. {LINK_TO_MANY:0000000007016993}{LINK_TO_MANY:0000000007016994}, "Component
Function Check".
3.Set the vehicle to READY.
-1 trip detection diagnosis activates the hybrid system warning lamp or 12-volt battery charge warning lamp at the 1st trip.
-If the malfunction is detected a second time at the next driving cycle, the hybrid system warning lamp is activated to notify the driver that a malfunction is detected. (2 trip detection diagnosis)

INSPECTION MODE

Description
- When the engine is warm and the Li-ion battery is sufficiently charged, the engine automatically stops when the vehicle is stopped. For this reason, when continuous engine operation is required, it is necessary to use inspection mode.
- When turning the vehicle wheels on a chassis dynamometer or similar equipment, it is necessary to use inspection mode to change the vehicle to suitable conditions.






CAUTION:
- *1: Inspection mode is canceled when the ignition switch is turned OFF. It is not canceled when the mode changed from CONSULT "EV/HEV", "ACTIVE TEST" mode to another mode. However inspection mode 1 is canceled if the select lever is shifted from P position to D position.
- *2: Check the conditions listed below before using inspection mode 1.
- If maintenance mode 1 is engaged when the Li-ion battery level is low, then in order to engage clutch
1 and charge the battery from the engine, use CONSULT "EV/HEV" "DATA MONITOR" mode and check that the "HV BATTERY LEVEL" reading is 50% or more, or else use the "Li-ion battery state of charge" in the information display on the combination meter and check that the battery level is 50%
or more.
- Check that the engine coolant temperature is 70 �C (158 �F) or more.
- *3: When the select lever is in the P or N position, adjustments to the throttle position prevent the engine speed from exceeding 3,000 rpm.
Operation Procedure
- Inspection mode 1: Work Procedure (Inspection Mode 1).
- Inspection mode 2: Work Procedure (Inspection Mode 2).
- Inspection mode 3: Work Procedure (Inspection Mode 3).
- Inspection mode 5: Work Procedure (Inspection Mode 5).