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DTC P1124, P1126 THROTTLE CONTROL MOTOR RELAY
EC-309
[QR (WITH EURO-OBD)]
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EC
DTC P1124, P1126 THROTTLE CONTROL MOTOR RELAY PFP:16119
Component Description BBS001FR
Power supply for the throttle control motor is provided to the ECM via throttle control motor relay. The throttle
control motor relay is ON/OFF controlled by the ECM. When the ignition switch is turned ON, the ECM sends
an ON signal to throttle control motor relay and battery voltage is provided to the ECM. When the ignition
switch is turned OFF, the ECM sends an OFF signal to throttle control motor relay and battery voltage is not
provided to the ECM.
CONSULT-II Reference Value in Data Monitor Mode BBS001FS
Specification data are reference values.
On Board Diagnosis Logic BBS001FT
These self-diagnoses have the one trip detection logic.
FAIL-SAFE MODE
When the malfunction is detected, the ECM enters fail-safe mode and the MI lights up.
DTC Confirmation Procedure BBS001FU
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
PROCEDURE FOR DTC P1124
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 8V.
With CONSULT-II
1. Turn ignition switch ON and wait at least 1 second.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. If DTC is detected, go to EC-314, "
Diagnostic Procedure" .
With GST
Follow the procedure “With CONSULT-II” above.
MONITOR ITEM CONDITION SPECIFICATION
THRTL RELAY
● Ignition switch: ON ON
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1124
1124
Throttle control motor
relay circuit short
ECM detect the throttle control motor relay
is stuck ON.
● Harness or connectors
(Throttle control motor relay circuit is shorted.)
● Throttle control motor relay
P1126
1126
Throttle control motor
relay circuit open
ECM detects a voltage of power source for
throttle control motor is excessively low.
● Harness or connectors
(Throttle control motor relay circuit is open.)
● Throttle control motor relay
Engine operating condition in fail-safe mode
ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5 degrees) by the return
spring.
SEF058Y
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