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Home >> Toyota >> 2003 >> Matrix Base, FWD, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (Cruise Control Systems - 2ZZ-GE) >> Diagnostic trouble codes >> DTC 21, 23: Vehicle Speed Sensor Circuit Or Signal Abnormal >> Circuit Description
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Circuit Description

WARNING: This page is about a different variant/trim than selected.

The vehicle speed sensor circuit is sent to cruise control ECU assy as a vehicle speed signal. For each rotation of the shaft, the vehicle speed sensor sends a signal through the combination meter assembly to the cruise control ECU assy (See the following chart). The cruise control ECU assy calculates the vehicle speed from this pulse frequency.

DTC 21,23 VEHICLE SPEED SENSOR CIRCUIT OR SIGNAL ABNORMAL

DTC DTC Detecting Condition Trouble Area
21 Speed Signal Is Not Input To The Cruise Control ECU Assy While Cruise Control Is Set
..... ..... Combination meter assembly
..... ..... Vehicle speed sensor
..... ..... Vehicle speed sensor circuit
..... ..... Cruise control ECU assy
23 Vehicle speed sensor pulse is abnormal
..... ..... Vehicle speed sensor
..... ..... Cruise control ECU assy