DESCRIPTION
This DTC is stored when the steering lock ECU (steering lock actuator or UPR bracket assembly) detects an IG2 power supply malfunction.
HINT:
The steering lock ECU (steering lock actuator or UPR bracket assembly) is not connected to the CAN communication system. However, the steering lock ECU (steering lock actuator or UPR bracket assembly) is connected to the certification ECU (smart key ECU assembly) via LIN communication and communicates with other components via CAN communication through the certification ECU (smart key ECU assembly).
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
Note |
---|---|---|---|---|
B2788 |
IG2 Signal Malfunction |
Mismatch between the steering lock ECU (steering lock actuator or UPR bracket assembly) IG2 input from the LIN communication system and from the direct line (1-trip detection logic*). |
|
DTC Output Confirmation Operation: No confirmation operation is necessary (monitoring is continuous). |
Vehicle Condition when Malfunction Detected |
Fail-safe Function when Malfunction Detected |
---|---|
The steering cannot be locked or unlocked. For this reason, the engine cannot be started. |
- |
DTC No. |
Data List Item |
Active Test Item |
---|---|---|
B2788 |
- |
- |
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
PROCEDURE
1. |
INSPECT STEERING LOCK ECU (STEERING LOCK ACTUATOR OR UPR BRACKET ASSEMBLY) (POWER SOURCE MODE SIGNAL) |
(a) Make sure that there is no looseness at the locking part and the connecting part of the connector.
(b) Disconnect the steering lock ECU (steering lock actuator or UPR bracket assembly) connector.
(c) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
(d) Reconnect the steering lock ECU (steering lock actuator or UPR bracket assembly) connector.
(e) Measure the voltage according to the value(s) in the table below. Standard Voltage:
|
|
OK | ![]() |
REPLACE STEERING LOCK ECU (STEERING LOCK ACTUATOR OR UPR BRACKET ASSEMBLY) |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Some Alarm Functions do not Operate
DESCRIPTION
When the alarm sounds, the following alarm functions operate: the roof console
box assembly and No. 1 room light assembly illuminates, and the headlights, taillights
and hazard lights flash, and the security horn and vehicle horn sound intermittently.
WIRING DIAGRAM
CAUTION / ...
Interior
*1: If equipped
* 2: Access Cab and Double Cab models
*3: Vehicles with auto anti- glare inside rear view mirror
*1: If equipped
*2: Vehicles with an automatic transmission
* : If equipped
* 1: If equipped
* 2: Vehicles with sub woofer ...
Removal
REMOVAL
PROCEDURE
1. REMOVE INTAKE AIR SURGE TANK ASSEMBLY
(See page )
2. DISCONNECT NO. 2 FUEL TUBE SUB-ASSEMBLY
(a) Disengage the 2 clamps.
(b) Disconnect the No. 2 fuel tube sub-assembly from the fuel tube sub-assembly
(See page ).
...