DESCRIPTION The front airbag sensor LH consists of a diagnostic circuit and frontal deceleration sensor, etc. If the airbag sensor assembly receives signals from the frontal deceleration sensor, it determines whether the SRS should be activated. DTC B1615 is stored when a malfunction is detected in the front airbag sensor LH circuit.
WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE:
PROCEDURE
(b) Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds. (c) Interchange the front airbag sensor LH with RH and connect the connectors to them. (d) Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds. (e) Turn the ignition switch to ON, and wait for at least 60 seconds. (f) Clear the DTCs stored in memory. Click here (g) Turn the ignition switch off. (h) Turn the ignition switch to ON, and wait for at least 60 seconds. (i) Check for DTCs. Click here
HINT: Codes other than DTC B1610 and B1615 may be output at this time, but they are not related to this check. (j) Turn the ignition switch off. (k) Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds. (l) Return the front airbag sensor RH and LH to their original positions and connect the connectors to them.
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Toyota Tundra Service Manual > Engine Immobiliser System (w/o Smart Key System): Push Switch / Key Unlock Warning Switch Malfunction (B2780)
DESCRIPTION This DTC is stored if the transponder key ECU assembly does not detect that the unlock warning switch assembly is on even when the ignition switch is ON. DTC No. Detection Item DTC Detection Condition Trouble Area Note B2780 Push Switch / Key Unlock Warning Switch Malfunction The unlock ...