Problem Symptoms Table
WARNING: This page is about a different car, the 2006 Toyota Tundra and 2005 Toyota Tundra. However, it is still accessible from the selected car via links, so may be relevant.
If a normal system code is displayed during the DTC check but the problem still occurs, check the circuits for each problem symptom in the order given in the table below and proceed to the relevant troubleshooting step.
HINT:
Inspect the "Fuse" and "Relay" before confirming the suspected areas as shown in the table below .
Inspect each malfunction circuit in numerical order for the corresponding symptom.
If the malfunction still exists even after checking and confirming that all the circuits are normal, replace the ECM.
PROBLEM SYMPTOMS TABLE - CRUISE CONTROL SYSTEM
| Symptom | Suspected Area |
|---|---|
| Main switch cannot be turned ON. (Cruise indicator light in combination meter does not come on.) |
|
| Vehicle speed setting cannot be done. (Although indicator light in combination meter comes on when the main switch is turned ON, it goes off when vehicle speed is set.) |
|
| Setting cannot be done. (Indicator light in combination meter comes on when the main switch is turned ON and it remains ON while setting.) |
|
| While the vehicle is driven with cruise control, the set control is cancelled. (Indicator light and CRUISE remain ON.) |
|
| Hunting (Speed is not constant.) |
|
| Setting cannot be cancelled. (When functions such as Coast, Acceleration, Resume, Set speed change are operated with control switch.) |
|
| DTC is not output, or is output when should not be. |
|
| CRUISE main indicator light does not come on. |
|