OK -- REPLACE ECM See: Powertrain Management/Computers and Control Systems/Engine Control Module/Service and
Repair/Removal
3. CHECK HARNESS AND CONNECTOR (KNOCK CONTROL SENSOR - ECM)
(a) Disconnect the knock control sensor connector.
(b) Disconnect the ECM connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance (Check for Open):
Standard Resistance (Check for Short):
Text in Illustration
(d) Reconnect the knock control sensor connector.
(e) Reconnect the ECM connector.
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (KNOCK CONTROL SENSOR - ECM)
OK -- REPLACE ECM See: Powertrain Management/Computers and Control Systems/Engine Control Module/Service and
Repair/Removal
Up to 08/2009
2GR-FE ENGINE CONTROL: SFI SYSTEM: P0327,P0328,P0332,P0333: Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor)
DESCRIPTION
A flat type knock control sensor (non-resonant type) has a structure that can detect vibration between approximately 6 kHz and 15 kHz.
Knock control sensors are fitted onto the engine block to detect engine knocking.
The knock control sensor contains a piezoelectric element which generates a voltage when it becomes deformed.
The voltage is generated when the engine block vibrates due to knocking. Any occurrence of engine knocking can be suppressed by delaying the
No comments:
Post a Comment