| Last Modified: 07-31-2024 | 6.11:8.1.0 | Doc ID: RM100000001G8ZO |
| Model Year Start: 2020 | Model: Corolla | Prod Date Range: [01/2019 - 09/2022] |
| Title: PARKING BRAKE: ELECTRIC PARKING BRAKE SYSTEM (for HV Model): DATA LIST / ACTIVE TEST; 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022] | ||
DATA LIST / ACTIVE TEST
READ DATA LIST
HINT:
Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.
NOTICE:
In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.
(a) Turn the power switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the power switch on (IG).
(d) Turn the Techstream on.
(e) Enter the following menus: Chassis / Electric Parking Brake / Data List.
(f) Read the Data List according to the display on the Techstream.
Chassis > Electric Parking Brake > Data List
|
Tester Display |
Measurement Item |
Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|---|
|
Number of Trouble Codes |
Number of DTCs stored |
0 to 255 |
0 |
- |
|
FR Speed Sensor Open |
Front speed sensor RH open detection |
Normal or Error |
Normal |
- |
|
FL Speed Sensor Open |
Front speed sensor LH open detection |
Normal or Error |
Normal |
- |
|
RR Speed Sensor Open |
Rear speed sensor RH open detection |
Normal or Error |
Normal |
- |
|
RL Speed Sensor Open |
Rear speed sensor LH open detection |
Normal or Error |
Normal |
- |
|
EFI ECU Communication Open |
ECM communication open detection |
Normal or Error |
Normal |
- |
|
Deceleration Sensor Open |
Deceleration sensor (airbag ECU assembly) communication open detection |
Normal or Error |
Normal |
- |
|
HV ECU Communication Open |
Hybrid vehicle control ECU communication open detection |
Normal or Error |
Normal |
- |
|
Body ECU Communication Open |
Main body ECU (multiplex network body ECU) communication open detection |
Normal or Error |
Normal |
- |
|
Brake ECU Communication Open |
Skid control ECU (brake booster with master cylinder assembly) communication open detection |
Normal or Error |
Normal |
- |
|
A/C ECU Communication Open |
Air conditioning amplifier assembly communication open detection |
Normal or Error |
Normal |
- |
|
Navigation ECU Communication Open |
Radio and display receiver assembly communication open detection |
Normal or Error |
Normal |
- |
|
Stop and Start ECU Communication Open |
Engine stop and start ECU communication open detection |
Normal or Error |
Normal |
This item is displayed on the Techstream but is not used |
|
Deceleration Sensor Open (EPB) |
Deceleration sensor (airbag ECU assembly) communication open detection |
Normal or Error |
Normal |
HINT: EPB stands for electric parking brake. |
|
FR Wheel Speed |
Front wheel speed sensor RH reading |
0.0 to 326.4 km/h (0.0 to 202.8 mph) |
When vehicle is stopped: 0.0 km/h (0.0 mph) When driving vehicle: Changes according to vehicle speed (when vehicle speed is constant, there are no big changes in vehicle speed display) |
When not normal, front speed sensor RH system and CAN communication may be malfunctioning |
|
FL Wheel Speed |
Front wheel speed sensor LH reading |
0.0 to 326.4 km/h (0.0 to 202.8 mph) |
When vehicle is stopped: 0.0 km/h (0.0 mph) When driving vehicle: Changes according to vehicle speed (when vehicle speed is constant, there are no big changes in vehicle speed display) |
When not normal, front speed sensor LH system and CAN communication may be malfunctioning |
|
RR Wheel Speed |
Rear wheel speed sensor RH reading |
0.0 to 326.4 km/h (0.0 to 202.8 mph) |
When vehicle is stopped: 0.0 km/h (0.0 mph) When driving vehicle: Changes according to vehicle speed (when vehicle speed is constant, there are no big changes in vehicle speed display) |
When not normal, rear speed sensor RH system and CAN communication may be malfunctioning |
|
RL Wheel Speed |
Rear wheel speed sensor LH reading |
0.0 to 326.4 km/h (0.0 to 202.8 mph) |
When vehicle is stopped: 0.0 km/h (0.0 mph) When driving vehicle: Changes according to vehicle speed (when vehicle speed is constant, there are no big changes in vehicle speed display) |
When not normal, rear speed sensor LH system and CAN communication may be malfunctioning |
|
Deceleration Sensor 1 |
Deceleration sensor (airbag ECU assembly) 1 input signal |
-18.300 to 18.318 m/s2 |
When vehicle is stopped: 0.000 m/s2 When driving vehicle: Continuously changes |
When not normal, deceleration sensor (airbag ECU assembly) system and CAN communication may be malfunctioning |
|
Deceleration Sensor 2 |
Deceleration sensor (airbag ECU assembly) 2 input signal |
-18.300 to 18.318 m/s2 |
When vehicle is stopped: 0.000 m/s2 When driving vehicle: Continuously changes |
When not normal, deceleration sensor (airbag ECU assembly) system and CAN communication may be malfunctioning |
|
Forward and Rearward G |
Deceleration sensor (airbag ECU assembly) input signal |
-18.300 to 18.318 m/s2 |
When vehicle is stopped: 0.000 m/s2 When driving vehicle: Changes according to increase or decrease in speed |
When not normal, deceleration sensor (airbag ECU assembly) system and CAN communication may be malfunctioning |
|
Zero Point of Deceleration Sensor |
Deceleration sensor (airbag ECU assembly) zero point |
-4.595 to 4.559 m/s2 |
- |
- |
|
Zero Point of Deceleration Sensor 2 |
Deceleration sensor (airbag ECU assembly) 2 zero point |
-4.595 to 4.559 m/s2 |
- |
- |
|
Vehicle Speed |
Vehicle speed |
0.0 to 326.4 km/h (0.0 to 202.8 mph) |
When vehicle is stopped: 0.0 km/h (0.0 mph) When driving vehicle: Changes according to vehicle speed (when vehicle speed is constant, there are no big changes in vehicle speed display) |
When not normal, speed sensor system and CAN communication may be malfunctioning |
|
ECU +B1 Voltage |
Skid control ECU (brake booster with master cylinder assembly) +B1 voltage |
0.00 to 20.00 V |
11 to 14 V |
- |
|
ECU +B2 Voltage |
Skid control ECU (brake booster with master cylinder assembly) +B2 voltage |
0.00 to 20.00 V |
11 to 14 V |
- |
|
RH Actuator Motor +Terminal Voltage |
Parking brake motor RH (parking brake actuator assembly RH) positive (+) terminal side voltage |
0.00 to 20.00 V |
- |
- |
|
RH Actuator Motor -Terminal Voltage |
Parking brake motor RH (parking brake actuator assembly RH) negative (-) terminal side voltage |
0.00 to 20.00 V |
- |
- |
|
LH Actuator Motor +Terminal Voltage |
Parking brake motor LH (parking brake actuator assembly LH) positive (+) terminal side voltage |
0.00 to 20.00 V |
- |
- |
|
LH Actuator Motor -Terminal Voltage |
Parking brake motor LH (parking brake actuator assembly LH) negative (-) terminal side voltage |
0.00 to 20.00 V |
- |
- |
|
Indoor Temperature |
Interior temperature |
-6.50 to 57.25°C (20.3 to 135°F) |
- |
When displayed value differs from actual interior temperature, air conditioning system and CAN communication system may be malfunctioning |
|
Ambient Temperature |
Ambient temperature |
-40 to 50°C (-40 to 122°F) |
- |
When displayed value differs from actual ambient temperature, air conditioning system and CAN communication system may be malfunctioning |
|
Stop Light Switch |
Stop light switch assembly input signal |
OFF or ON |
OFF: Brake pedal released ON: Brake pedal depressed |
- |
|
EPB Switch |
Electric parking brake switch (electric parking brake switch assembly) input |
OFF, Lock, Release or Unknown |
OFF: Lock switch and release switch are off Lock: Lock switch on Release: Release switch on |
When not normal, electric parking brake switch (electric parking brake switch assembly) release side system may be malfunctioning HINT: EPB stands for electric parking brake. |
|
Auto Mode Request |
Auto mode request status |
OFF or ON |
- |
- |
|
Shift Position |
Position of shift lever |
P, N, R, D or Unknown |
P: Shift lever in P N: Shift lever in N R: Shift lever in R D: Shift lever in D or S |
When not normal, shift position signal system may be malfunctioning |
|
IG Switch |
IG power source status |
OFF or ON |
OFF: IG power source voltage is not input to skid control ECU (brake booster with master cylinder assembly) ON: IG power source voltage is input to skid control ECU (brake booster with master cylinder assembly) |
- |
|
Brake Hold Ready |
Brake hold control permission status |
OFF or ON |
- |
- |
|
Brake Hold Control Mode |
Brake hold control mode |
OFF, ON, Release or EPB |
OFF: Brake hold control is not operating ON: Brake hold control is operating Release: Brake hold control is released EPB: Parking brake is locked during brake hold control |
HINT: EPB stands for electric parking brake. |
|
EPB Lock Request |
Lock demand status |
OFF or ON |
OFF: Not requested ON: Requested |
HINT: EPB stands for electric parking brake. |
|
FR Speed Signal Status |
FR speed signal status |
Normal or Stuck |
Normal |
- |
|
FL Speed Signal Status |
FL speed signal status |
Normal or Stuck |
Normal |
- |
|
RR Speed Signal Status |
RR speed signal status |
Normal or Stuck |
Normal |
- |
|
RL Speed Signal Status |
RL speed signal status |
Normal or Stuck |
Normal |
- |
|
RH Actuator Current Status |
Parking brake actuator assembly RH monitoring current condition |
Valid or Inval |
Valid |
- |
|
LH Actuator Current Status |
Parking brake actuator assembly LH monitoring current condition |
Valid or Inval |
Valid |
- |
|
RH Actuator Nut Stroke |
Parking brake actuator assembly RH nut stroke value |
0.000 to 8.160 mm (0.000 to 0.321 in.) |
- |
- |
|
LH Actuator Nut Stroke |
Parking brake actuator assembly LH nut stroke value |
0.000 to 8.160 mm (0.000 to 0.321 in.) |
- |
- |
|
RH Actuator Motor Actual Current |
Parking brake motor RH (parking brake actuator assembly RH) current value |
-5.0362 to 50.5000 A |
- |
- |
|
RH Actuator Motor Adjustment Current |
Parking brake motor RH (parking brake actuator assembly RH) current calibration value |
-6.9690 to 6.9140 A |
- |
- |
|
RH Actuator 0 load Current |
Parking brake actuator assembly RH current value with no load |
-5.0362 to 50.5000 A |
- |
- |
|
LH Actuator Motor Actual Current |
Parking brake motor LH (parking brake actuator assembly LH) current value |
-5.0362 to 50.5000 A |
- |
- |
|
LH Actuator Motor Adjustment Current |
Parking brake motor LH (parking brake actuator assembly LH) current calibration value |
-6.9690 to 6.9140 A |
- |
- |
|
LH Actuator 0 load Current |
Parking brake actuator assembly LH current value with no load |
-5.0362 to 50.5000 A |
- |
- |
|
Counter of IG ON After EPB Control Cancel |
Number of times the power switch was turned on (IG) after EPB control was canceled |
0 to 255 Times |
- |
HINT: EPB stands for electric parking brake. |
|
RH Actuator Status |
Parking brake actuator assembly RH condition |
Default, Lock, Lock Dynamic, Release, Lock Faulty, Unexpected, Lock Standby, Release Standby, Lock Dynamic Standby, Release Dynamic Standby, Lock Dynamic Faulty, Lock Standard Control, Lock Dynamic Control, Lock Control for Prevention Loosen by High Temperature, Lock Control for Prevention Slipping Down, Re-Lock Control by Switch, Recovery Lock Control, Lock Control After Dynamic PKB, Release Standard Control, Release Dynamic Control or Full Release Control |
- |
- |
|
LH Actuator Status |
Parking brake actuator assembly LH condition |
Default, Lock, Lock Dynamic, Release, Lock Faulty, Unexpected, Lock Standby, Release Standby, Lock Dynamic Standby, Release Dynamic Standby, Lock Dynamic Faulty, Lock Standard Control, Lock Dynamic Control, Lock Control for Prevention Loosen by High Temperature, Lock Control for Prevention Slipping Down, Re-Lock Control by Switch, Recovery Lock Control, Lock Control After Dynamic PKB, Release Standard Control, Release Dynamic Control or Full Release Control |
- |
- |
|
RH Actuator Motor Current Differential |
Differences in parking brake motor RH (parking brake actuator assembly RH) monitoring current |
-1.008 to 0.945 A |
- |
- |
|
LH Actuator Motor Current Differential |
Differences in parking brake motor LH (parking brake actuator assembly LH) monitoring current |
-1.008 to 0.945 A |
- |
- |
|
Auto Mode |
AUTO (shift-linked) mode permission status |
OFF or ON |
OFF: Manual mode ON: AUTO (shift-linked) mode |
- |
|
Dynamic PKB Mode |
Dynamic parking brake operation status |
OFF or ON |
OFF: Dynamic parking brake is not operating ON: Dynamic parking brake is operating |
- |
|
Permission of Interlocking Shift |
AUTO (shift-linked) mode permission status |
OK or NG |
- |
- |
|
Permission of Interlocking Brake |
Brake-linked permission status |
OK or NG |
- |
- |
|
Permission of RH Interlocking PKB Lock |
Parking brake actuator assembly RH parking brake lock control permission status |
OK or NG |
OK |
- |
|
Permission of RH Interlocking PKB Release |
Parking brake actuator assembly RH parking brake release control permission status |
OK or NG |
- |
- |
|
Permission of RH Interlocking Dynamic PKB |
Parking brake actuator assembly RH dynamic parking control permission status |
OK or NG |
- |
- |
|
Permission of RH Interlocking PKB Full Release |
Parking brake actuator assembly RH parking brake full release permission status |
OK or NG |
- |
- |
|
Permission of LH Interlocking PKB Lock |
Parking brake actuator assembly RH parking brake lock control permission status |
OK or NG |
OK |
- |
|
Permission of LH Interlocking PKB Release |
Parking brake actuator assembly RH parking brake release control permission status |
OK or NG |
- |
- |
|
Permission of LH Interlocking Dynamic PKB |
Parking brake actuator assembly RH dynamic parking control permission status |
OK or NG |
- |
- |
|
Permission of LH Interlocking PKB Full Release |
Parking brake actuator assembly LH parking brake full release permission status |
OK or NG |
- |
- |
|
Fade Status |
Fade status |
OFF or ON |
- |
- |
|
EPB Control Cancel History |
Cause of EPB control cancel |
No Recoded, RH IC Overheat, LH IC Overheat, RH Actuator Motor Current High, LH Actuator Motor Current High, RH Actuator Motor +B Open Judging, LH Actuator Motor +B Open Judging or IG Voltage High/Low |
- |
HINT: EPB stands for electric parking brake. |
|
Parking Brake Light |
Parking brake indicator light (red) output signal |
OFF, Light or Blink |
OFF: Parking brake indicator light (red) turns off Light: Parking brake indicator light (red) illuminates Blink: Parking brake indicator light (red) flashes |
- |
|
EPB Warning Light |
Brake system warning light (yellow indicator) output signal |
OFF or ON |
OFF: Brake system warning light (yellow indicator) turns off ON: Brake system warning light (yellow indicator) illuminates |
- |
|
AUTO Indicator |
AUTO indicator light output signal |
OFF or ON |
- |
This item is displayed on the Techstream, however, it is not used for this vehicle |
PERFORM ACTIVE TEST
HINT:
Using the Techstream to perform Active Tests allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests.
(a) Turn the power switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the power switch on (IG).
(d) Turn the Techstream on.
(e) Enter the following menus: Chassis / Electric Parking Brake / Active Test.
(f) According to the display on the Techstream, perform the Active Test.
Chassis > Electric Parking Brake > Active Test
|
Tester Display |
Measurement Item |
Control Range |
Diagnostic Note |
|---|---|---|---|
|
Auto Mode |
AUTO (shift-linked) mode |
ON or OFF |
|
|
EPB Warning Light |
Brake system warning light (yellow) |
ON or OFF |
HINT: EPB stands for electric parking brake. |
|
PKB Light |
Parking brake indicator light (red) |
ON or OFF |
|
|
PKB Lock Control |
Parking brake lock control |
ON or OFF |
|
|
PKB Release Control |
Parking brake release control |
ON or OFF |
|
|
PKB Full Release Control |
Parking brake full release control |
ON or OFF |
|
|
|