Data List/Active Test

WARNING: This page is about a different car, the 2007 Lexus RX 350. However, it is still accessible from the selected car via links, so may be relevant.

READ DATA LIST

HINT:

Using the intelligent tester's DATA LIST allows switch, sensor, actuator, and other item values to be read without removing any parts. Reading the DATA LIST early in troubleshooting is one way to save time.

Connect the intelligent tester to the DLC3.
Turn the ignition switch on.

Read the DATA LIST according to the display on the tester.

ECM (Cruise control):

NORMAL CONDITION TABLE

Item	Measurement Item/Display (Range)	Normal Condition	Diagnostic Note
ACCEL REQUEST	Accelerator request signal / min.: -2,621.44 k/h/s, max.: 2,621.36 k/ h/s	No vehicle in front	-
VEHICLE DISTANC	Laser sensor/ min.: 0 m (0 ft), max.: 255 m (836.65 ft)	Distance to vehicle in front	-
DISTANCE TIME	Vehicle distance time setting condition / SHRT, MID, LONG, NO	Vehicle-to-vehicle distance selected by steering pad switch (distance control switch)	-
L/C OPTION FLAG	Dynamic laser cruise option flag / NO or YES	YES: Vehicle-to-vehicle distance mode	-
O/D CUT RQST	O/D cut request / NOT REQ or REQUEST	NOT REQ: Idling	-
3RD SHIFT DOWN	Shift down request to 3rd gear / NOT REQ or REQUEST	NOT REQ: Idling	-
ALARM RQST	Alarm request signal / NOT REQ or REQUEST	REQUEST: When beeping NOT REQ: When not beeping	-
VEHICLE SPD	Vehicle speed sensor / min.: 0 km/h (0 mph), max.: 255 km/h (158 mph)	Actual vehicle speed	-
MEMORY SPD	Cruise control memorized speed / min.: 36 km/h (22.5 mph), max.: 200 km/h (125 mph)	Memorized speed: Cruise control activated	-
THROTTLE	Throttle opening angle / min.: 0°, max.: 125°	Actual demanded throttle angle	-
CCS OPER STATUS	Cruise control condition/ON or OFF	ON: Cruise control operated OFF: Cruise control operation stopped	-
CRUISE CONTROL	Cruise control system active condition / ON or OFF	ON: Cruise control activated OFF: Cruise control deactivated	-
CCS INDICATOR M	Cruise indicator signal (Main CPU) / ON or OFF	ON: "CRUISE" on OFF: "CRUISE" off	3
CCS READY M	Cruise control system standby condition (Main CPU) / ON or OFF	Each time main switch is pushed, ON is displayed and then OFF is displayed	-
MAIN SW (MAIN)	Main switch signal (Main CPU) / ON or OFF	ON: Main switch on OFF: Main switch off	1
MAIN SW (SUB)	Main Switch signal (Sub CPU) / ON or OFF	ON: Main switch on OFF: Main switch off	1
CANCEL SW	CANCEL switch signal / ON or OFF	ON: CANCEL switch on OFF: CANCEL switch off	-
SET/COAST SW	SET/COAST switch signal / ON or OFF	ON: - (COAST)/SET switch on OFF: - (COAST)/SET switch off	-
RES/ACC SW	RES/ACC switch signal / ON or OFF	ON: + (ACCEL)/RES (RESUME) switch on OFF: + (ACCEL)/RES (RESUME) switch off	-
STP LIGHT SW M	Stop light switch signal (Main CPU)/ON or OFF	ON: Brake pedal depressed OFF: Brake pedal released	-
STP LIGHT SW SUB	Stop light switch signal (Sub CPU) Terminal: STP / ON or OFF	ON: Brake pedal depressed OFF: Brake pedal released	-
STP LIGHT SW SUB	Stop light Switch signal (Sub CPU) Terminal: STP / ON or OFF	ON: Brake pedal released OFF: Brake pedal depressed	-
SHIFT D POS	Park/Neutral position sensor signal / ON or OFF	ON: OFF:	-
TARG DECL SLOPE	Cruise target deceleration slope / 0.03, 0.06, 0.11, 0.15	0.03,0.06, 0.11, 0.15	-
VSC FAIL SAFE	VSC fail-safe flag / ON or OFF	-	-
4TH SHIFT DOWN	Shift down request to 4th gear / NOT REQ or REQUEST	NOT REQ: Idling	-
THROTTLE CLOSE	All throttle close request / NOT REQ or REQUEST	ON: REQUEST OFF: NOT REQUEST	-
BRAKE CTRL RQST	Brake control request/ NOT REQ or REQUEST	ON: REQUEST OFF: NOT REQUEST	-

HINT:

1 is OK, but 2 is NG → ECM failure
2 is OK, but 3 is NG → DTC output or ECM failure
1 is OK, but CRUISE main indicator light does not illuminate → Cruise main indicator light, wire harness, or ECM failure

ACTIVE TEST

HINT:

Performing the intelligent tester's ACTIVE TEST allows relays, VSVs, actuators, and other items to be operated without removing any parts. Performing the ACTIVE TEST early in troubleshooting is one way to save time. The DATA LIST can be displayed during the ACTIVE TEST.

Connect the intelligent tester to the DLC3.
Turn the ignition switch on.

Perform the ACTIVE TEST according to the display on the tester.

HINT:

The ignition switch must be turned on to proceed to the ACTIVE TEST using the intelligent tester.

Combination meter (Meter ECU):

COMBINATION METER (METER ECU) REFERENCE TABLE

Item	Test Details	Diagnostic Note
CRUISE INDIC	Turns CRUISE main indicator light ON / OFF	-