Toyota Tundra Service Manual: Freeze Frame Data

Toyota Tundra Service Manual / Brake / Brake Control / Dynamic Control Systems / Trailer Brake Control System / Freeze Frame Data

FREEZE FRAME DATA

FREEZE FRAME DATA/INFORMATION

(a) When a DTC is stored, the trailer brake control ECU (brake control with bracket relay) stores the current vehicle state as Freeze Frame Data.

HINT:

Freeze Frame Data at the time a DTC is stored:

When the trailer brake control ECU (brake control with bracket relay) stores data at the time a DTC is stored, no updates will be performed until the data is cleared.

(b) For DTCs stored in the trailer brake control ECU (brake control with bracket relay), information (INF) codes that are contained in the Freeze Frame Data can be displayed on the Techstream.

CHECK FREEZE FRAME DATA AND INFORMATION

(a) Turn the ignition switch off.

(b) Connect the Techstream to the DLC3.

(d) Turn the Techstream on.

(e) Enter the following menus: Powertrain / Trailer Brake Controller / Trouble Codes.

(f) Read the Freeze Frame Data recorded when the DTCs were stored.

(g) Read the information.

(1) Select the item that has an information code (INF code) from the Freeze Frame Data screen.

Trailer Brake Controller:

Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Slider Switch Position Sensor Voltage #1	Slider switch position sensor voltage #1 / min.: 0 V, max.: 5 V	Actual manual trailer brake output slider position	When the manual trailer brake output slider is operated from the free (0%) condition, the value gradually changes from 0 V to 5 V.
Slider Switch Position Sensor Voltage #2	Slider switch position sensor voltage #2 / min.: 0 V, max.: 5 V	Actual manual trailer brake output slider position	When the manual trailer brake output slider is operated from the free (0%) condition, the value gradually changes from 5 V to 0 V.
Gain Rocker Switch (+)	GAIN (+) selection button / ON or OFF	ON: GAIN (-) selection button OFF OFF: GAIN (+) selection button ON	-
Gain Rocker Switch (-)	GAIN (-) selection button / ON or OFF	ON: GAIN (-) selection button OFF OF: GAIN (-) selection button ON	-
Status of Master Cylinder Pressure Sensor Output	Status of master cylinder pressure sensor output / Valid or Invalid	Valid	-
Status of Master Cylinder Pressure Sensor	Status of master cylinder pressure sensor / Normal or Abnorm	Normal	-
Status of Brake ECU Communication	Status of skid control ECU (brake actuator assembly) communication / Valid or Invalid	Valid	-
Status of Meter ECU Communication	Status of combination meter assembly communication / Valid or Invalid	Valid	-
Status of G Sensor Communication	Status of acceleration sensor (airbag sensor assembly) communication / Valid or Invalid	Valid	-
Master Cylinder Pressure Value	Master cylinder pressure reading / Min.: 0.00 MPa, Max.: 20.48 MPa	Brake pedal operated: Proportional to pedal force Brake pedal released: 0.00 to 1.76 MPa	-
Status of Hill-Start Assist Control (HAC)	Status of hill-start assist control / OFF or ON	OFF: Hill-start assist control not operating ON: Hill-start assist control operating	-
Status of Trailer Sway Control (TSC) Operation	Status of trailer sway control operation / Inactive or Active	Inactive: Trailer sway control not operating Active: Trailer sway control operating	-
Stop Light Switch	Status of stop light switch / OFF or ON	OFF: Brake pedal released ON: Brake pedal depressed	-
Status of Stop Light Switch	Status of stop light switch assembly / Normal or Abnormal	Normal	-
Status of Stop Light Relay	Status of stop light control relay (VSC ACC) / Normal or Abnormal	Normal	-
Status of Vehicle Speed Signal	Status of vehicle speed signal / Valid or Invalid	Valid	-
Mounting Information of Yaw/G Sensor	Installation information of yaw rate and acceleration sensor (airbag sensor assembly) / Connecter Vehicle Front Side or Connecter Vehicle Rear Side	Connector Vehicle Rear Side: Yaw rate and acceleration sensor (airbag sensor assembly) connector is located on side facing rear of vehicle	-
Status of G Sensor 0 Point Calibration	Status of acceleration sensor zero point calibration / Complete or Incomplete	Complete	-
Status of Yaw/G Sensor Power Supply Range	Status of yaw rate and acceleration sensor (airbag sensor assembly) supply range / Valid or Invalid	Valid	-
Status of G Sensor Communication	Status of acceleration sensor (airbag sensor assembly) communication / Normal or Abnormal	Normal	-
Status of G Sensor Output	Status of acceleration sensor (airbag sensor assembly) output / Valid or Invalid	Valid	-
Status of ABS Control (FR Wheel)	Status of front wheel RH ABS control / OFF or ON	OFF: Control not operating ON: Control operating	-
Status of ABS Control (FL Wheel)	Status of front wheel LH ABS control / OFF or ON	OFF: Control not operating ON: Control operating	-
Status of ABS Control (RR Wheel)	Status of rear wheel RH ABS control / OFF or ON	OFF: Control not operating ON: Control operating	-
Status of ABS Control (RL Wheel)	Status of rear wheel LH ABS control / OFF or ON	OFF: Control not operating ON: Control operating	-
G Sensor Value	Acceleration sensor (airbag sensor assembly) reading / Min.: -18.375 m/s2, Max.: 18.387 m/s2	-	Displays a negative value during deceleration and a positive value during acceleration During deceleration/acceleration: Changes continuously
Vehicle Speed	Maximum wheel speed sensor reading / Min.: 0.00 km/h (0.00 mph), Max.: 327.67 km/h (203.61 mph)	Vehicle stopped: 0 km/h (0 mph)	When driving at constant speed: No large fluctuations
TBC Output Voltage	Trailer brake output voltage / min.: 0.000 V, max.: 18.000 V	-	Changes according to brake pedal and manual trailer brake output slider operation when a trailer is connected
Command Value Trailer Brake Output	Trailer brake output intensity / min.: 0%, max.: 100%	-	Changes according to brake pedal and manual trailer brake output slider operation when a trailer is connected
Trailer Brake Light	Trailer brake light / ON or OFF	OFF: Always	No trailer brake light on the combination meter assembly
Battery Voltage	Battery voltage / min.: 0.000 V, max.: 18.000 V	11 to 14 V	-
Gain Value	Gain value / min.: 0.0, max.: 10.0	Gain value set when GAIN (+/-) selection button is operated	-
Trailer Brake Type	Trailer brake type / Noconnection, Electric (Trailer Lightweight Type), Electric Over Hydraulic (Trailer Lightweight Type), Electric (Trailer Heavyweight Type), Electric Over Hydraulic (Trailer Heavyweight Type) or TBC OFF	Condition of selected trailer brake type	HINT: Electric (Trailer Lightweight Type): Electric (0-4999lb) Electric Over Hydraulic (Trailer Lightweight Type): Electric-Over-Hydraulic (0-4999lb) Electric (Trailer Heavyweight Type): Electric (5000+lb), Electric Over Hydraulic (Trailer Heavyweight Type): Electric-Over-Hydraulic (5000+lb)
Status of Manual Brake Slider Stuck	Status of manual trailer brake output slider/ Not Stuck or Stuck	Not Stuck	-
Status of Manual Brake Slider Circuit	Status of manual trailer brake output slider circuit / Normal or Open or Short	Normal	-
Manual Brake Slider Sensor Output Value Comparison Result	Manual trailer brake output slider sensor output valve comparison result / Normal or Abnormal	Normal	-
Status of Gain Rocker Switch (+) Stuck	Status of GAIN (+) selection button stuck / Not Stuck or Stuck	Not Stuck	-
Status of Gain Rocker Switch (-) Stuck	Status of GAIN (-) selection button stuck / Not Stuck or Stuck	Not Stuck	-
Detail Code	Detail code / Min.: 0, Max.: 255	-	Number of information codes (INF code) output is displayed
The Number of DTCs	Number of DTC recorded / Min.: 0, Max.: 255	-	-

CLEAR FREEZE FRAME DATA AND INFORMATION

NOTICE:

Clearing the DTCs will also clear the Freeze Frame Data and information codes (INF codes).

(a) Turn the ignition switch off.

(b) Connect the Techstream to the DLC3.

(d) Turn the Techstream on.

(e) Clear the DTCs and Freeze Frame Data.

Click here

Fail-safe Chart

How To Proceed With Troubleshooting

See More:

Toyota Tundra Owners Manual > Opening, closing the windows and moon roof: Back window
Opening and closing Open/close Push the lock release lever and slide the back window. ■Closing the back window Make sure that the back window is securely closed after closing it. WARNING■Caution while driving Keep the back window closed. This not only keeps personal belongings from being thrown ...