FREEZE FRAME DATA
1. FREEZE FRAME DATA
(a) When a DTC is stored, the 4 wheel drive control ECU stores the current vehicle state as Freeze Frame Data.
HINT:
Freeze Frame Data at the time a DTC is stored:
When the 4 wheel drive control ECU stores data at the time a DTC is stored, no updates will be performed until the data is cleared.
2. CHECK FREEZE FRAME DATA
(a) Turn the ignition switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch to ON.
(d) Turn the Techstream on.
(e) Enter the following menus: Powertrain / Four Wheel Drive / Trouble Codes.
(f) According to the display on the Techstream, select the trouble code data display with Freeze Frame Data.
Four Wheel Drive
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
---|---|---|---|
FR Wheel Speed |
Front wheel speed sensor RH reading/ Min.: 0.00 km/h (0.00 mph) Max.: 327.67 km/h (203.61 mph) |
Vehicle stopped: 0.00 km/h (0.00 mph) |
No large fluctuations when driving at a constant speed. |
FL Wheel Speed |
Front wheel speed sensor LH reading/ Min.: 0.00 km/h (0.00 mph) Max.: 327.67 km/h (203.61 mph) |
Vehicle stopped: 0.00 km/h (0.00 mph) |
No large fluctuations when driving at a constant speed. |
RR Wheel Speed |
Rear wheel speed sensor RH reading/ Min.: 0.00 km/h (0.00 mph) Max.: 327.67 km/h (203.61 mph) |
Vehicle stopped: 0.00 km/h (0.00 mph) |
No large fluctuations when driving at a constant speed |
RL Wheel Speed |
Rear wheel speed sensor LH reading/ Min.: 0.00 km/h (0.00 mph) Max.: 327.67 km/h (203.61 mph) |
Vehicle stopped: 0.00 km/h (0.00 mph) |
No large fluctuations when driving at a constant speed. |
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: 0.00 km/h (0.00 mph) |
No large fluctuations when driving at a constant speed. |
Rear Differential Lock Control SW (R) |
Differential lock switch status (differential lock switch input signal of R terminal on ECU side)/ ON or OFF |
ON: Switch pressed and held OFF: Switch not pressed |
- |
Rear Differential Lock Detection SW (SLS) |
Differential lock indicator switch status (differential lock indicator switch input signal of SLS terminal on ECU side)/ ON or OFF |
ON: Rear differential locked condition OFF: Rear differential free condition |
- |
IG SW |
Ignition switch status/ ON or OFF |
ON: Ignition switch ON |
- |
Rear Differential Lock Solenoid Target Current |
Differential lock coil drive circuit target current value/ Min.: 0.0 A Max.: 25.5 A |
Rear differential locked: 1.0 to 8.0 A Rear differential free: 0.1 A or less |
- |
Rear Differential Lock Solenoid Actual Current |
Differential lock coil drive circuit actual current value/ Min.: 0.0 A Max.: 25.5 A |
Rear differential locked: 1.0 to 8.0 A Rear differential free: 0.1 A or less |
- |
Motor Energization Status Signal |
Motor power signal status/ ON or OFF |
ON: Power supplied to motor OFF: Power not supplied to motor |
- |
C/C Cancel Request |
Cruise control cancellation signal status/ ON or OFF |
ON: Cruise control cancellation requested OFF: Cruise control cancellation not requested |
- |
Rear Differential Lock Status Signal |
Rear differential LOCK status signal/ ON or OFF |
ON: Rear differential locked condition OFF: Rear differential free condition |
- |
Buzzer Request |
Buzzer sounding request/ NO Sound, Sound(3 times) or Sound |
|
|
Rear Differential Lock Indicator Request |
Rear differential lock indicator light request/ Blink4*1, Blink3, Blink2, Blink1, ON or OFF |
|
|
Rear Differential Lock Solenoid Energization Request |
Differential lock coil power command/ ON or OFF |
ON: Power supplied to differential lock coil OFF: Power not supplied to differential lock coil |
- |
IG Voltage |
IG monitor voltage/ Min.: 0.0 V Max.: 25.5 V |
11 to 14 V: Ignition switch ON |
- |
Rear Differential Lock Solenoid Voltage |
Differential lock coil drive circuit monitor voltage/ Min.: 0.0 V Max.: 25.5 V |
Rear differential locked: Higher than 3.5 V Rear differential free: 3.5 V or less |
- |
Rear Differential Lock Solenoid Duty |
Differential lock coil drive circuit duty/ Min.: 0% Max.: 255% |
Rear differential locked: 0 to 100% Rear differential free: 0% |
- |
Mode Status |
Mode transition condition/ Initial Control, Particular Control at Start-Up, Shift Settling Control at Start-Up, H2, H2->H4L(T/F Activating), H2->H4L(ADD Activating), H4L->H2(T/F Activating), H4L->H2(ADD Activating), H4L, H4L->L4L, L4L->H4L, L4L Rr Diff. Free, H4F->L4F, L4F->H4F, H4F, H4F->H4L, H4L->H4F, L4F, L4L Rr Diff. Free->Lock, L4L Rr Diff. Lock->Free, L4L Rr Diff. Lock, K1, K2, K3, K4, K5, K6, K7, K8, K9, K10, S01, S02, S03, S04, S05, S06, S07, S08, S09, S10, S11, S12, S13, S14, S15, S16, S17, S18, S19, S20, S21, S22, S23, S24, B1, B2, B3, B4, B5, B6, 2WD Rr Diff. Free, 2WD Rr Diff. Free->Lock, 2WD Rr Diff. Lock->Free or 2WD Rr Diff. Lock |
Displays transfer shift actuator, A.D.D. actuator*2 and differential lock coil transition condition |
HINT:
|
Rear Differential Lock Solenoid |
Differential lock coil ECU internal power status/ ON or OFF |
ON: Power supplied OFF: Power not supplied |
- |
CAN Signal Invalid Status by IG Voltage Low |
Whether CAN communication data is invalid due to IG voltage drop/ Valid or Inval |
Valid: IG voltage 9.5 V or higher |
Inval: IG voltage below 9.5 V |
SW Input Invalid Status by IG Voltage Low |
Whether actuator switch input is invalid due to IG voltage drop/ Valid or Inval |
Valid: IG voltage 7.1 V or higher |
Inval: IG voltage below 7.1 V |
Transfer Shift Invalid Status by IG Voltage Low |
Whether transfer shift actuator switching operation is invalid due to IG voltage drop/ Valid or Inval |
Valid: IG voltage 9.5 V or higher |
Inval: IG voltage below 9.5 V |
Number of DTC |
Number of DTCs stored/ Min.: 0 Max.: 255 |
0 |
- |
Clutch Switch Circuit
DESCRIPTION
Clutch switch circuit inspection is necessary for manual transmission vehicles.
When the clutch pedal is released, the ECM receives the positive (+) battery
voltage through the ECU-IG NO. 2 fuse and ignition switch. While the clutch pedal
is depressed, the clutch switch assembly se ...
Brake Control Signal Mismatch (C1A69)
DESCRIPTION
The skid control ECU (master cylinder solenoid)*1 or skid control ECU (brake
actuator assembly)*2 sends signals to the millimeter wave radar sensor assembly
according to the brake control status. If the millimeter wave radar sensor assembly
receives a vehicle stability control sys ...
Terminals Of Ecm
TERMINALS OF ECM
1. ECM
HINT:
The standard voltage between each pair of ECM terminals is shown in the table
below. In the table, first follow the information under "Condition". Look under
"Terminal No. (Symbol)" for the terminals to be inspected. The standard voltage
b ...