1997 Toyota Avalon XLSFACTORY OEM SERVICE PROCEDURE

Cruise Control System DTCS

CRUISE CONTROL SYSTEM DTCS

OEM Code Test Procedure Description
11 123(2), (3) Short In Actuator Motor Circuit
12 123(2), 7(3) Open In Actuator Magnetic Clutch Ckt For 0.8 Second
12 123(2),7(3) Short In Actuator Magnetic Clutch Ckt
14 123(2), (3) Actuator Mechanical Malfunction
15 123(2), (3) Open In Actuator Motor Circuit
21 4(2), (3) Open In Vehicle Speed Sensor Ckt
23 (4) 4(2), (3) Vehicle Speed Sensor Pulse Abnormal
32 56(2), (3) Short In Control Switch Circuit
41 1112(2), (3) Faulty Cruise Control ECU
42 1112(2), (3) Source Voltage Drop
51 8(2), (3) Short In Idle Signal Circuit
Normal None Indicator Light Flashes On & Off
(1) Perform test numbers in order given.
(2) Check wiring harness and connectors.
(3) Check CC ECU. See PIN VOLTAGE TESTS Replace CC ECU as necessary.
(4) If speed set can be maintained when cruise ON-OFF (main) switch is again set to SET/COAST position, there is no malfunction.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.