2JZ/2JX/2JV/2H7-1
1-4-47
C7200 Broken internal thermistor wire
An abnormal value is detected in the
input data to inner temperature sensor 1.
Poor contact in the
connector termi-
nals.
Check the connection of connector YC13 on
the engine PWB and laser scanner unit, and
the continuity across the connector termi-
nals. Repair or replace if necessary.
Defective laser
scanner unit.
Replace the laser scanner unit (see page 1-
5-21).
Defective engine
PWB.
Replace the engine PWB and check for cor-
rect operation.
C7210 Short-circuited internal thermistor
An abnormal value is detected in the
input data to inner temperature sensor 1.
Poor contact in the
connector termi-
nals.
Check the connection of connector YC13 on
the engine PWB and laser scanner unit, and
the continuity across the connector termi-
nals. Repair or replace if necessary.
Defective laser
scanner unit.
Replace the laser scanner unit (see page 1-
5-21).
Defective engine
PWB.
Replace the engine PWB and check for cor-
rect operation.
C7240 Broken internal thermistor 2 wire
An abnormal value is detected in the
input data to inner temperature sensor 2.
Poor contact in the
connector termi-
nals.
Check the connection of connector YC8 on
the engine PWB and the continuity across
the connector terminals. Repair or replace if
necessary.
Defective engine
PWB.
Replace the engine PWB and check for cor-
rect operation.
C7250 Short-circuited internal thermistor 2
An abnormal value is detected in the
input data to inner temperature sensor 2.
Poor contact in the
connector termi-
nals.
Check the connection of connector YC8 on
the engine PWB and the continuity across
the connector terminals. Repair or replace if
necessary.
Defective engine
PWB.
Replace the engine PWB and check for cor-
rect operation.
C7401 Developing unit K type mismatch
problem
Absence of the developing unit K is
detected.
Developing unit
connector inserted
incorrectly.
Reinsert the developing unit connector if
necessary.
Different type of
the developing unit
is installed.
Install the correct developing unit.
C7402 Developing unit C type mismatch
problem
Absence of the developing unit C is
detected.
Developing unit
connector inserted
incorrectly.
Reinsert the developing unit connector if
necessary.
Different type of
the developing unit
is installed.
Install the correct developing unit.
C7403 Developing unit M type mismatch
problem
Absence of the developing unit M is
detected.
Developing unit
connector inserted
incorrectly.
Reinsert the developing unit connector if
necessary.
Different type of
the developing unit
is installed.
Install the correct developing unit.
Code Contents
Remarks
Causes Check procedures/corrective measures
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