DYNAMIC RADAR CRUISE CONTROL SYSTEM TERMINALS OF ECU
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CHECK DRIVING SUPPORT ECU ASSEMBLY
Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition I187-30 (B) - I187-25 (GND) V - W-B Battery Always 11 to 14 V I187-39 (CA2H) - I187-25 (GND) L - W-B CAN communication signal Engine switch on (IG) Pulse generation
(See waveform 1)
I187-17 (CA2L) - I187-25 (GND) LG - W-B CAN communication signal Engine switch on (IG) Pulse generation
(See waveform 2)
I187-25 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω I187-6 (SPSW) - I187-25 (GND) R - W-B Vehicle-to-vehicle distance control switch signal Engine switch on (IG), Vehicle-to-vehicle distance control switch on Below 1 V I187-6 (SPSW) - I187-25 (GND) R - W-B Vehicle-to-vehicle distance control switch signal Engine switch on (IG), Vehicle-to-vehicle distance control switch off 10 to 14 V I187-18 (CA1N) - I187-25 (GND) W - W-B CAN communication signal Engine switch on (IG) Pulse generation
(See waveform 3)
I187-40 (CA1P) - I187-25 (GND) R - W-B CAN communication signal Engine switch on (IG) Pulse generation
(See waveform 4)
I187-32 (WIP2) - I187-25 (GND) W - W-B Wiper switch signal Engine switch on (IG), wiper switch HI position 11 to 14 V I187-32 (WIP2) - I187-25 (GND) W - W-B Wiper switch signal Engine switch on (IG), wiper switch LO position 6 to 10 V
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Waveform 1
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CAN communication signal
Item Content Terminal Name I187-39 (CA2H) - I187-25 (GND) Tester Range 1 V/DIV., 10 μsec./DIV. Condition Engine switch on (IG) Tech Tips
The waveform varies depending on the CAN communication signal.
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Waveform 2
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CAN communication signal
Item Content Terminal Name I187-17 (CA2L) - I187-25 (GND) Tester Range 1 V/DIV., 10 μsec./DIV. Condition Engine switch on (IG) Tech Tips
The waveform varies depending on the CAN communication signal.
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Waveform 3
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CAN communication signal
Item Content Terminal Name I187-18 (CA1N) - I187-25 (GND) Tester Range 1 V/DIV., 10 μsec./DIV. Condition Engine switch on (IG) Tech Tips
The waveform varies depending on the CAN communication signal.
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Waveform 4
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CAN communication signal
Item Content Terminal Name I187-40 (CA1P) - I187-25 (GND) Tester Range 1 V/DIV., 10 μsec./DIV. Condition Engine switch on (IG) Tech Tips
The waveform varies depending on the CAN communication signal.
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CHECK ECM
for 2AR-FE Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition A25-23 (TC) - E26-16 (E1) P - BR Connected to terminal TC of DLC3 Engine switch on (IG) 11 to 14 V A25-23 (TC) - E26-16 (E1) P - BR Connected to terminal TC of DLC3 Terminals TC and CG of DLC3 connected Below 1 V A25-11 (STP) - E26-16 (E1) BE - BR Stop light signal Engine switch on (IG), Brake pedal depressed 11 to 14 V A25-11 (STP) - E26-16 (E1) BE - BR Stop light signal Engine switch on (IG), Brake pedal released Below 1 V A25-47 (CCS) - E26-16 (E1) W- BR Cruise control main switch circuit Cruise control main switch OFF 1 MΩ or higher A25-47 (CCS) - E26-16 (E1) W- BR Cruise control main switch circuit Cruise control main switch ON Below 1.5 Ω A25-47 (CCS) - E26-16 (E1) W- BR Cruise control main switch circuit +/RES switch ON 235 to 245 Ω A25-47 (CCS) - E26-16 (E1) W- BR Cruise control main switch circuit -/SET switch ON 617 to 643 Ω A25-47 (CCS) - E26-16 (E1) W- BR Cruise control main switch circuit CANCEL switch ON 1509 to 1571 Ω A25-24 (ST1-) - E26-16 (E1) GR - BR Stop light signal Engine switch on (IG), Brake pedal depressed Below 1 V A25-24 (ST1-) - E26-16 (E1) GR - BR Stop light signal Engine switch on (IG),
Brake pedal released
11 to 14 V E26-69 (D) - E26-16 (E1) G - BR D shift position signal Engine switch on (IG),
Shift lever D or S position
11 to 14 V E26-69 (D) - E26-16 (E1) G - BR D shift position signal Engine switch on (IG),
Shift lever except D or S position
Below 1 V A25-43 (SFTD) - E26-16 (E1) V - BR Down shift switch signal Engine switch on (IG) and shift lever in S range 11 to 14 V Engine switch on (IG) and shift lever in "-" position (Down shift) Below 1 V A25-42 (SFTU) - E26-16 (E1) R - BR Up shift switch signal Engine switch on (IG) and shift lever S position 11 to 14 V Engine switch on (IG) and shift lever "+" position (Up shift) Below 1 V A25-38 (CCHG) - A25-47 (CCS) GR - W Cruise control main switch signal Engine switch on (IG)
MODE switch off
10 to 14 V A25-38 (CCHG) - A25-47 (CCS) GR - W Cruise control main switch signal Engine switch on (IG)
MODE switch on
Below 1 V If the value is not within the specified range, the ECM may have a malfunction.
for 2GR-FE Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition A25-45 (TC) - E26-49 (E1) P - BR Connected to terminal TC of DLC3 Engine switch on (IG) 11 to 14 V A25-45 (TC) - E26-49 (E1) P - BR Connected to terminal TC of DLC3 Terminals TC and CG of DLC3 connected Below 1 V A25-51 (STP) - E26-49 (E1) BE - BR Stop light signal Engine switch on (IG), Brake pedal depressed 11 to 14 V A25-51 (STP) - E26-49 (E1) BE - BR Stop light signal Engine switch on (IG), Brake pedal released Below 1 V A25-47 (CCS) - E26-49 (E1) W - BR Cruise control main switch circuit Cruise control main switch OFF 1 MΩ or higher A25-47 (CCS) - E26-49 (E1) W - BR Cruise control main switch circuit Cruise control main switch ON Below 1.5 Ω A25-47 (CCS) - E26-49 (E1) W - BR Cruise control main switch circuit +/RES switch ON 235 to 245 Ω A25-47 (CCS) - E26-49 (E1) W - BR Cruise control main switch circuit -/SET switch ON 617 to 643 Ω A25-47 (CCS) - E26-49 (E1) W - BR Cruise control main switch circuit CANCEL switch ON 1509 to 1571 Ω A25-36 (ST1-) - E26-49 (E1) GR - BR Stop light signal Engine switch on (IG), Brake pedal depressed Below 1 V A25-36 (ST1-) - E26-49 (E1) GR - BR Stop light signal Engine switch on (IG),
Brake pedal released
11 to 14 V E26-69 (D) - E26-49 (E1) G - BR D shift position signal Engine switch on (IG),
Shift lever D or S position
11 to 14 V E26-69 (D) - E26-49 (E1) G - BR D shift position signal Engine switch on (IG),
Shift lever except D or S position
Below 1 V A25-50 (SFTD) - E26-49 (E1) V - BR Down shift switch signal Engine switch on (IG) and shift lever in S range 11 to 14 V Engine switch on (IG) and shift lever in "-" position (Down shift) Below 1 V A25-34 (SFTU) - E26-49 (E1) R - BR Up shift switch signal Engine switch on (IG) and shift lever S position 11 to 14 V Engine switch on (IG) and shift lever "+" position (Up shift) Below 1 V A25-48 (CCHG) - A25-47 (CCS) GR - W Cruise control main switch signal Engine switch on (IG)
MODE switch off
10 to 14 V A25-48 (CCHG) - A25-47 (CCS) GR - W Cruise control main switch signal Engine switch on (IG)
MODE switch on
Below 1 V If the value is not within the specified range, the ECM may have a malfunction.