CAUTION / NOTICE / HINT HINT:
PROCEDURE
(a) Measure the battery voltage with the ignition switch off. Standard voltage: 11 to 14 V If the voltage is below 11 V, recharge or replace the battery before proceeding.
(a) Check for DTCs and note any codes that are output. Click here (b) Clear the DTCs. Click here (c) Recheck for DTCs. Based on the DTCs output above, try to force output of the same CAN communication system DTC or meter / gauge system DTC by simulating the symptoms indicated by the DTC.
(a) Refer to the problem symptoms table. Click here
(a) Terminals of ECU Click here (b) Data List/Active Test Click here (c) Operation check Click here
|
Toyota Tundra Service Manual > Can Communication System: Check Bus 4 Line for Short to +B
DESCRIPTION There may be a short circuit between one of the CAN bus lines and +B when there is no resistance between terminal 22 (CA2H) of the central gateway ECU (network gateway ECU) and terminal 16 (BAT) of the DLC3, or terminal 7 (CA2L) of the central gateway ECU (network gateway ECU) and termin ...
