DTC P0327 KNOCK SENSOR 1 CIRCUIT LOW INPUT (BANK 1 OR SINGLE SENSOR)
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DTC P0327 KNOCK SENSOR 1 CIRCUIT LOW INPUT
(BANK 1 OR SINGLE SENSOR)
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CHECK HARNESS BETWEEN KNOCK SENSOR AND ECM CONNECTOR.
Turn the ignition switch to OFF.
Disconnect the connector from ECM.
Measure the resistance between ECM harness connector
and chassis ground.
Connector & terminal
(B136) No. 25 — Chassis ground:
Is the resistance more than 700 kΩ?
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Repair harness and connector.
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Note
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In this case, repair the following:
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Open circuit
in harness between knock sensor and ECM connector
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Poor contact in knock sensor connector
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Poor contact in coupling connector
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CHECK KNOCK SENSOR.
Disconnect the connector from knock sensor.
Measure the resistance between knock sensor connector
terminal and engine ground.
Terminals
No. 2 — Engine ground:
Is the resistance more than 700 kΩ?
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Repair harness and connector.
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Note
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In this case, repair the following:
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Poor contact
in knock sensor connector
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CHECK CONDITION OF KNOCK SENSOR INSTALLATION.
Is
the knock sensor installation bolt tightened securely?
Replace the knock sensor.
Tighten knock sensor installation
bolt securely.