TL FWD V6-3.5L (2009)
Information Bus: Component Tests and General Diagnostics
Multiplex Integrated Control System MICU Input Test
Multiplex Integrated Control System MICU Input Test
NOTE: Before testing, troubleshoot the multiplex integrated control system first, using B-CAN System Diagnosis Test Mode A. See: Troubleshooting -
B-CAN System Diagnosis Test Mode A
Driver's MICU
1. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.
2. Remove the driver's dashboard undercover. See: Body and Frame/Interior Moulding / Trim/Dashboard / Instrument Panel/Service and
Repair/Driver's Dashboard Undercover Removal/Installation
3. Disconnect driver's under-dash fuse/relay box connectors F, N, P, Q, and R.
NOTE: All connector views are wire side of female terminals.
4. Inspect the connector and socket terminals to be sure they are all making good contact.
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If the terminals are bent, loose or corroded, repair them as necessary and recheck the system.
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If the terminals look OK, go to step 5.
5. With the connectors still disconnected, do these input tests at the following connectors.
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If any test indicates a problem, find and correct the cause, then recheck the system.
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If all the input tests prove OK, go to step 6.
*1: Without keyless access system
*2: With keyless access system
