Toyota 4Runner: Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
HINT:
If a trouble code is output during the DTC check, inspect the trouble areas listed for that code. For details of code, refer to the "See page" below.
CAN Communication System|
DTC Code |
Detection Item |
Trouble Area |
DTC Output from |
See page |
|---|---|---|---|---|
|
U0100 |
Lost Communication with ECM / PCM "A" |
- Power source or inside ECM - ECM main wire or connector - ECM |
Power management control ECU |
|
|
U0164 |
Lost Communication with A/C ECU |
- Power source or inside air conditioning amplifier assembly - Air conditioning amplifier assembly branch wire or connector - Air conditioning amplifier assembly |
Power management control ECU |
|
|
U1002 |
Lost Communication with Gateway Module (Power Management2) |
- Power management bus circuit - Air conditioning amplifier assembly branch wire or connector - Power management control ECU main wire or connector - ECM main wire or connector - Air conditioning amplifier assembly - Power management control ECU - ECM - No. 4 junction connector |
Power management control ECU |
|
|
U0208 |
Lost Communication with "Seat Control Module A" |
- Power source or inside front power seat switch LH - Front power seat switch LH branch wire or connector - Front power seat switch LH |
Main body ECU (multiplex network body ECU) |
|
|
U1002 |
Lost Communication with Gateway Module (MS Bus) |
- Main body ECU (multiplex network body ECU) - Drive monitor switch - Harness or connector |
Main body ECU (multiplex network body ECU) |
|
|
- MS bus circuit - Front power seat switch LH branch wire or connector - Main body ECU (multiplex network body ECU) main wire or connector - Combination meter assembly main wire or connector - Main body ECU (multiplex network body ECU) - Combination meter assembly - Front power seat switch LH - No. 2 junction connector |
Main body ECU (multiplex network body ECU) |
|
||
|
U1114 |
Lost Communication with Main Switch Module |
- Power source or inside drive monitor switch - Drive monitor switch main wire or connector - Drive monitor switch |
Main body ECU (multiplex network body ECU) |
|
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Fail-safe Chart
FAIL-SAFE CHART
1. FAIL-SAFE FUNCTION
(a) When communication fails in any of the main wires (communication lines) due
to a short circuit or other causes, the fail-safe function, which is specified ...
Lost Communication with Gateway Module (Power Management2) (U1002)
DESCRIPTION
The power management control ECU stores this DTC when no signals can
be received from the ECUs that are memorized as those connected to the power
management bus.
When t ...
Other materials about Toyota 4Runner:
Crawl Switch
Components
COMPONENTS
ILLUSTRATION
Removal
REMOVAL
PROCEDURE
1. REMOVE DRIVE MONITOR SWITCH (CRAWL CONTROL SWITCH AND MULTI-TERRAIN SELECT
SWITCH)
(a) Detach the 4 claws and remove the drive monitor switch (CRAWL control
switch an ...
Installation
INSTALLATION
PROCEDURE
1. INSTALL TURN SIGNAL FLASHER ASSEMBLY
(a) Install the turn signal flasher assembly with the nut.
Torque:
5.5 N·m {56 kgf·cm, 49 in·lbf}
(b) Connect the connector.
2. INSTALL LOWER INSTRUMENT PANEL FINISH PANEL SUB-ASSEMBLY
...
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