Possible causes – Throttle Body Plate Binding– Faulty Throttle Actuator– Throttle Actuator harness is open or shorted– Throttle Actuator circuit poor electrical connection When is the code detected? Throttle valve locked during Engine Control Module (ECM) order to open Symptoms
Possible causes – Brake actuator (skid control ECU)– ABS solenoid relay circuit Symptoms – ABS Warning Light ON
Possible causes – Faulty Ignition switch- Faulty EFI main relay– Ignition switch harness is open or shortec– Ignition switch circuit poor electrical connection– Faulty Engine Control Module (ECM) When is the code detected? - Short circuit in IG switch circuit-
Possible causes – Faulty Ignition switch- Faulty EFI main relay– Ignition switch harness is open or shortec– Ignition switch circuit poor electrical connection– Faulty Engine Control Module (ECM) When is the code detected? - Short circuit in IG switch circuit-
Possible causes – faulty key When is the code detected? Communication error B2798 SCION Description This code is stored in the memory when a key that does not have a transponder chip is inserted or if communication between the key
Possible causes – Faulty key When is the code detected? Key with incomplete key code is inserted B2794 SCION Description This Detected Trouble Code (DTC) is output when a key with an incomplete key code is inserted into the ignition
Possible causes – Faulty key When is the code detected? Key with unregistered key code is inserted B2795 SCION Description This Detected Trouble Code (DTC) is output when a key with a key code that has not been registered in
Possible causes – Faulty key When is the code detected? Transponder chip malfunction B2793 SCION Description This Detected Trouble Code (DTC) is output when trouble is found in a key during the key code registration or the key code is
Possible causes – Faulty Key- Faulty transponder key amplifier- Faulty transponder key ECU assembly– transponder key amplifier wire harness When is the code detected? - Error in communication between ECM and transponder key ECU assy, and in communication line- Communication
Possible causes – Faulty Key- Faulty transponder key amplifier- Faulty transponder key ECU assembly– transponder key amplifier wire harness When is the code detected? Keys are positioned too close to each other, or noise occurred in communication line B2797 SCION
Possible causes – Faulty Key- Faulty transponder key amplifier- Faulty transponder key ECU assembly– transponder key amplifier wire harness When is the code detected? No communication B2796 SCION Description This code is stored in the memory when a key that
Possible causes – Faulty Left Front Speed Sensor– Left Front Speed Sensor harness is open or shorted– Left Front Speed Sensor circuit poor electrical connection– Left Front Speed Sensor rotor– Sensor installation– Brake actuator (skid control ECU) Symptoms – ABS
Possible causes – Faulty Left Front Speed Sensor– Left Front Speed Sensor rotor– Sensor installation– Brake actuator (skid control ECU) Symptoms – ABS warning light ON C1236 SCION Description The speed sensor detects wheel speed and sends the appropriate signals
Possible causes – Faulty Left Rear Speed Sensor– Left Rear Speed Sensor rotor– Sensor installation– Brake actuator (skid control ECU) Symptoms – ABS warning light ON C1239 SCION Description The speed sensor detects wheel speed and sends the appropriate signals
Possible causes – Faulty Left Rear Speed Sensor– Left Rear Speed Sensor harness is open or shorted– Left Rear Speed Sensor circuit poor electrical connection– Left Rear Speed Sensor rotor– Sensor installation– Brake actuator (skid control ECU) Symptoms – ABS
Possible causes – Faulty Right Front Speed Sensor– Right Front Speed Sensor harness is open or shorted– Right Front Speed Sensor circuit poor electrical connection– Right Front Speed Sensor rotor– Sensor installation– Brake actuator (skid control ECU) Symptoms – ABS
Possible causes – Faulty Right Front Speed Sensor– Right Front Speed Sensor rotor– Sensor installation– Brake actuator (skid control ECU) Symptoms – ABS warning light ON C1235 SCION Description The speed sensor detects wheel speed and sends the appropriate signals
Possible causes – Faulty Right Rear Speed Sensor– Right Rear Speed Sensor harness is open or shorted– Right Rear Speed Sensor circuit poor electrical connection– Right Rear Speed Sensor rotor– Sensor installation– Brake actuator (skid control ECU) Symptoms – ABS
Possible causes – Faulty Right Rear Speed Sensor– Right Rear Speed Sensor rotor– Sensor installation– Brake actuator (skid control ECU) Symptoms – ABS warning light ON C1238 SCION Description The speed sensor detects wheel speed and sends the appropriate signals
Possible causes – Faulty Transponder key amplifier– Transponder key amplifier wire harness– Faulty tTransponder key ECU assy When is the code detected? Antenna coil is open/short B2784 SCION Description The transponder key coil is built into the transponder key amplifier