Toyota Tacoma (2015-2018) Service Manual: Invalid Data Received from Deceleration Sensor (C1442,C1443)
DESCRIPTION
The airbag sensor assembly has a built-in yaw rate and acceleration sensor.
The skid control ECU (brake actuator assembly) receives signals from the yaw rate and acceleration sensor (airbag sensor assembly) via the CAN communication system.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
C1442 |
Invalid Data Received from Acceleration Sensor |
When voltage at terminal +BS is 9.5 to 17.4 V, sensor invalid information received from acceleration sensor is ON continuously for 10 seconds or more. |
Acceleration sensor (Airbag sensor assembly) |
|
C1443 |
Invalid Data Received from Yaw Rate Sensor |
When voltage at terminal +BS is 9.5 to 17.4 V, sensor invalid information received from yaw rate sensor is ON continuously for 10 seconds or more. |
Yaw rate sensor (Airbag sensor assembly) |
CAUTION / NOTICE / HINT
NOTICE:
When replacing the yaw rate and acceleration sensor (airbag sensor assembly),
perform zero point calibration and store system information (See page
.gif)
).
PROCEDURE
|
1. |
CHECK DTC |
(a) Clear the DTCs (See page
).
(b) Turn the ignition switch off.
(c) Start the engine and idle it for 60 seconds, and then stop the engine.
(d) Check if the same DTC is recorded (See page
).
|
Result |
Proceed to |
|---|---|
|
DTCs C1442 and/or C1443 are output |
A |
|
DTCs C1442 and C1443 are not output |
B |
| A | .gif) |
REPLACE AIRBAG SENSOR ASSEMBLY |
| B | |
USE SIMULATION METHOD TO CHECK |
Open in ABS Solenoid Relay Circuit (C146E,C146F)
DESCRIPTION
The ABS solenoid relay supplies power to the ABS solenoid and TRAC solenoid.
The solenoid relay is turned on 1.5 seconds after the ignition switch is turned
ON, and is turned off if an ...
Acceleration Sensor Stuck Malfunction (C1232,C1243,C1245)
DESCRIPTION
The skid control ECU (brake actuator assembly) receives signals from the yaw
rate and acceleration sensor (airbag sensor assembly) via the CAN communication
system.
The airbag sensor ...
Other materials:
Check Bus 5 Lines for Short Circuit
DESCRIPTION
There may be a short circuit between the CAN main bus lines and/or CAN branch
lines when the resistance between terminals 15 (CA5H) and 16 (CA5L) of the central
gateway ECU (network gateway ECU) is below 54 Ω.
Detection Item
Trouble Area
Resi ...
Disassembly
DISASSEMBLY
PROCEDURE
1. INSPECT 3RD GEAR THRUST CLEARANCE
(a) Using a dial indicator, measure the 3rd gear thrust clearance.
Standard clearance:
0.200 to 0.490 mm (0.0079 to 0.0192 in.)
If the clearance is outside the specification, replace the 3rd gear,
thrust washer, c ...
Parts Location
PARTS LOCATION
ILLUSTRATION
*A
w/ Fog Light
*B
w/ Automatic High Beam System
*C
for Manual Transmission
-
-
*1
HEADLIGHT ASSEMBLY LH
*2
HEADLIGHT ASSEMB ...
