Dynamic Radar Cruise Control System Terminals Of Ecu
CHECK DISTANCE CONTROL ECU
CHECK ECM
CHECK MILLIMETER WAVE RADAR SENSOR
Dynamic Radar Cruise Control System -- Terminals Of Ecu |
| CHECK DISTANCE CONTROL ECU |
Symbols (Terminal No.)
| Wiring Color
| Terminal Description
| Condition
| Specified Condition
|
B (L13-1) - GND (L13-12)
| L - G
| Battery
| Always
| 10 to 16 V
|
CANH (L13-8) - GND (L13-12)
| BR- G
| CAN communication signal
| CAN communication circuit
| Pulse generation
|
CANL (L13-9) - GND (L13-12)
| GR- G
| CAN communication signal
| CAN communication circuit
| Pulse generation
|
SGND (L13-10) - Body ground
| B - Body ground
| Ground
| Always
| Below 1 Ω
|
GND (L13-12) - Body ground
| G - Body ground
| Ground
| Always
| Below 1 Ω
|
IGB (L13-13) - GND (L13-12)
| R - G
| Engine switch on signal
| Engine switch off
| Below 2 V
|
IGB (L13-13) - GND (L13-12)
| R - G
| Engine switch on signal
| Engine switch on (IG)
| 10 to 16 V
|
LRDD (L13-22) - SGND (L13-10)
| O - B
| Millimeter wave radar sensor input signal
| Engine switch on (IG)
| Pulse generation
(see waveform 1)
|
LRRD (L13-23) - SGND (L13-10)
| LG - B
| Millimeter wave radar sensor output signal
| Engine switch on (IG)
| Pulse generation
(see waveform 2)
|
MODE (L13-16) - GND (L13-12)
| W - G
| Steering pad switch signal (Distance control switch signal)
| Engine switch on (IG), Steering pad switch signal ON
| 0 to 2 V
|
MODE (L13-16) - GND (L13-12)
| W - G
| Steering pad switch signal (Distance control switch signal)
| Engine switch on (IG), Steering pad switch signal OFF
| 9 to 16 V
|
Reference: waveform 1
- HINT:
- Terminal: LRDD - SGND
- Gauge set: 2 V/DIV., 10 msec./DIV.
- Condition: Engine switch on (IG)
Reference: waveform 2
- HINT:
- Terminal: LRRD - SGND
- Gauge set: 2 V/DIV., 5 msec./DIV.
- Condition: Engine switch on (IG)
If the value is not within the standard range, the ECM may have a malfunction.
Symbols (Terminal No.)
| Wiring Color
| Terminal Description
| Condition
| Specified Condition
|
STP (A7-4) - E1 (E7-7)
| R-B - BR
| Stop light signal
| Brake pedal released (Stop light switch OFF)
| Below 1 V
|
STP (A7-4) - E1 (E7-7)
| R-B - BR
| Stop light signal
| Brake pedal depressed (Stop light switch ON)
| 10 to 14 V
|
CCS (A7-31) - E1 (E7-7)
| L-B - BR
| Cruise control main switch signal
| Engine switch on (IG)
| 10 to 16 V
|
CCS (A7-31) - E1 (E7-7)
| L-B - BR
| Cruise control main switch signal
| CANCEL switch ON
| 6.6 to 10.1 V
|
CCS (A7-31) - E1 (E7-7)
| L-B - BR
| Cruise control main switch signal
| SET/COAST switch ON
| 4.5 to 7.1 V
|
CCS (A7-31) - E1 (E7-7)
| L-B - BR
| Cruise control main switch signal
| RES/ACC switch ON
| 2.3 to 4.0 V
|
CCS (A7-31) - E1 (E7-7)
| L-B - BR
| Cruise control main switch signal
| Main switch ON
| Below 1 V
|
ST1- (A6-8) - E1 (E7-7)
| G-W - BR
| Stop light signal
| Engine switch on (IG), Brake pedal depressed (Stop light switch ON)
| Below 1 V
|
ST1- (A6-8) - E1 (E7-7)
| G-W - BR
| Stop light signal
| Engine switch on (IG), Brake pedal released (Stop light switch OFF)
| 10 to 14 V
|
CCHG (A6-20) - E1 (E7-7)
| R-L - BR
| Distance control switch signal
| Engine switch on (IG), Cruise control main switch ON, MODE switch ON
| Below 1 V
|
CCHG (A6-20) - E1 (E7-7)
| R-L - BR
| Distance control switch signal
| Engine switch on (IG), Cruise control main switch ON, MODE switch OFF
| 10 to 14 V
|
LGND (A6-29) - Body ground
| L-B - Body ground
| Ground
| Always
| Below 1 Ω
|
E1 (E7-7) - Body ground
| BR - Body ground
| Ground
| Always
| Below 1 Ω
|
| CHECK MILLIMETER WAVE RADAR SENSOR |
Symbols (Terminal No.)
| Wiring Color
| Terminal Description
| Condition
| Specified Condition
|
LGND (B8-1) - Body ground
| L-B - Body ground
| Ground (Distance signal)
| Always
| Below 1 Ω
|
SGND (B8-2) - Body ground
| BR - Body ground
| Ground
| Always
| Below 1 Ω
|
LRDD (B8-3) - SGND (B8-2)
| G - BR
| Millimeter wave radar sensor output signal
| Engine switch on (IG)
| Pulse generation
(see waveform 1)
|
LRRD (B8-4) - SGND (B8-2)
| LG - BR
| Millimeter wave radar sensor input signal
| Engine switch on (IG)
| Pulse generation
(see waveform 2)
|
IGB (B8-5) - SGND (B8-2)
| R - BR
| Power source
| Engine switch on (IG)
| 10 to 14 V
|
Reference: waveform 1
- HINT:
- Terminal: LRDD - SGND
- Gauge set: 2 V/DIV., 10 msec./DIV.
- Condition: Engine switch on (IG)
Reference: waveform 2
- HINT:
- Terminal: LRRD - SGND
- Gauge set: 2 V/DIV., 5 msec./DIV.
- Condition: Engine switch on (IG)
