Description
*: ECM determines the start signal status by the signals of engine speed and battery voltage.
The ECM activates the fuel pump for several seconds after the ignition switch is turned ON to improve engine start ability. If the ECM receives a engine speed signal from the camshaft position sensor (PHASE), it knows that the engine is rotating, and causes the pump to operate. If the engine speed signal is not received when the ignition switch is ON, the engine stalls. The ECM stops pump operation and prevents battery discharging, thereby improving safety. The ECM does not directly drive the fuel pump. It controls the ON/OFF fuel pump relay, which in turn controls the fuel pump.
Component Function Check
1.CHECK FUEL PUMP FUNCTION
: Vehicle front (Illustration
shows
the view with intake air duct removed)
Fuel pressure pulsation should be felt on the fuel feed hose for 1 second after ignition switch is turned ON.
Diagnosis Procedure
1.CHECK FUEL PUMP POWER SUPPLY CIRCUIT-I
2.CHECK FUEL PUMP POWER SUPPLY CIRCUIT-II
Check the voltage between IPDM E/R harness connector and ground.
3.DETECT MALFUNCTIONING PART
Check the following.
4.CHECK FUEL PUMP POWER SUPPLY CIRCUIT-III
5.DETECT MALFUNCTIONING PART
Check the following.
6.CHECK FUEL PUMP GROUND CIRCUIT
7.CHECK FUEL PUMP
8.CHECK INTERMITTENT INCIDENT
Component Inspection
1.CHECK FUEL PUMP
Can communication system
System Description
CAN (Controller Area Network) is a serial communication line for real time
application. It is an on-vehicle multiplex
communication line with high data communication speed and excellent error
detection ability. Many electronic
control units are equipped onto each vehicle, a ...
Climate controlled seat switch indicator
Description
Illuminates the climate controlled seat switch to indicate operating status.
Component Function Check
1.CHECK CLIMATE CONTROLLED SEAT SWITCH INDICATOR FUNCTION
Check that the indicators for the climate controlled seat switch operate in
both COOL and HEAT modes.
Diagnosis Procedure ...
BCM (body control module)
Reference Value
NOTE: The Signal Tech II Tool (J-50190) can
be used to perform the following functions. Refer to the Signal Tech II User
Guide for additional information.
Activate and display TPMS transmitter IDs
Display tire pressure reported by the TPMS transmitter
Read TPMS DTCs
Re ...