Description
BCM turns ON the following relays to ignition power supply to each ECU when the ignition switch is turned ON.
BCM checks any ignition relay ON request for consistency with the actual ignition relay operation status.
DTC Logic
DTC DETECTION LOGIC
NOTE:
DTC CONFIRMATION PROCEDURE
1. PERFORM DTC CONFIRMATION PROCEDURE
Diagnosis Procedure
1.CHECK DATA MONITOR
2.CHECK CAN COMMUNICATION
Check CAN communication.
3.CHECK IGNITION RELAY-1 SIGNAL
Standardized relay
Description
NORMAL OPEN, NORMAL CLOSED AND MIXED TYPE RELAYS
Relays can mainly be divided into three types: normal open, normal closed and
mixed type relays
TYPE OF STANDARDIZED RELAYS
1M * 1 Make
2M * 2 Make
1T * 1 Transfer
1M*1B * 1 Make 1 Break
...
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
customer's comments; refer to SE-56, "Diagno ...
P0172, P0175 fuel injection system function
DTC Logic
DTC DETECTION LOGIC
With the Air/Fuel Mixture Ratio Self-Learning Control, the actual mixture
ratio can be brought closely to the
theoretical mixture ratio based on the mixture ratio feedback signal from A/F
sensor 1. The ECM calculates
the necessary compensation to correct the o ...