COMPONENT PARTS
Component Parts Location
SYSTEM
RELAY CONTROL SYSTEM
RELAY CONTROL SYSTEM : System Description
SYSTEM DIAGRAM
DESCRIPTION
IPDM E/R activates the internal control circuit to perform the relay ON-OFF control according to the input signals from various sensors and the request signals received from control units via CAN communication.
CAUTION: IPDM E/R integrated relays cannot be removed.
RELAY CONTROL SYSTEM : Fail-safe
CAN COMMUNICATION CONTROL
When CAN communication with ECM and BCM is impossible, IPDM E/R performs fail-safe control. After CAN communication recovers normally, it also returns to normal control.
If No CAN Communication Is Available With ECM
Control part |
Fail-safe operation |
Cooling fan |
|
A/C compressor | A/C relay OFF |
If No CAN Communication Is Available With BCM
Control part |
Fail-safe operation |
Front wiper motor |
|
Horn | Horn OFF |
Ignition relay-1 | The status just before activation of fail-safe is maintained. |
Starter motor | Starter relay OFF |
IGNITION RELAY MALFUNCTION DETECTION FUNCTION
FRONT WIPER CONTROL
IPDM E/R detects front wiper stop position by a front wiper auto stop signal.
When a front wiper auto stop signal is in the conditions listed below, IPDM E/R stops power supply to wiper after repeating a front wiper 10 second activation and 20 second stop five times.
NOTE: This operation status can be confirmed on the IPDM E/R “Data Monitor” that displays “BLOCK” for the item “WIP PROT” while the wiper is stopped.
STARTER MOTOR PROTECTION FUNCTION
IPDM E/R turns OFF the starter relay to protect the starter motor when the starter relay remains active for 90 seconds.
SMART FIELD-EFFECT TRANSISTOR (FET)
SMART FIELD-EFFECT TRANSISTOR (FET) : System Description
A smart Field-Effect Transistor (FET) is a transistor used to monitor and control current flow on module outputs.
The IPDM E/R uses a smart FET protection strategy to prevent module damage in the event of excessive current flow. The smart FET protection strategy monitors its outputs for excessive current, and when a fault occurs, shuts down the output and records a DTC.
POWER CONSUMPTION CONTROL SYSTEM
POWER CONSUMPTION CONTROL SYSTEM : System Description
SYSTEM DIAGRAM
DESCRIPTION
Outline
Normal mode (wake-up)
Low power consumption mode (sleep)
Sleep Mode Activation
Wake-up Operation
DIAGNOSIS SYSTEM (IPDM E/R)
CONSULT Function (IPDM E/R)
APPLICATION ITEM
CONSULT performs the following functions via CAN communication with IPDM E/R.
ECU IDENTIFICATION
The IPDM E/R part number is displayed.
SELF DIAGNOSTIC RESULT
Refer to PCS-20, "DTC Index".
DATA MONITOR
ACTIVE TEST
CAN DIAG SUPPORT MNTR
Refer to LAN-14, "CAN Diagnostic Support Monitor".
Basic inspection
DIAGNOSIS AND REPAIR WORKFLOW
Work Flow
OVERALL SEQUENCE
DETAILED FLOW
1.GET INFORMATION FOR SYMPTOM
Get the detailed information from the customer about the symptom (the
condition and the environment when
the incident/malfunction occurred).
>> GO TO 2.
2.CHECK DTC
Ch ...
P014C, P014D, P015A, P015B, A/F sensor 1
DTC Description
DTC DETECTION LOGIC
To judge malfunctions, this diagnosis measures response time of the A/F
signal computed by ECM from the A/
F sensor 1 signal. The time is compensated by engine operating (speed and load),
fuel feedback control constant,
and the A/F sensor 1 temperature ind ...
Symptom diagnosis
SQUEAK AND RATTLE TROUBLE DIAGNOSES
Work Flow
CUSTOMER INTERVIEW
Interview the customer if possible, to determine the conditions that exist
when the noise occurs. Use the Diagnostic
Worksheet during the interview to document the facts and conditions when the
noise occurs and any
custome ...