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Last Modified: 4-30-2014 |
6.6 J |
Doc ID: RM0000018M1002X |
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Model Year: 2006 |
Model: LX470 |
Prod Date Range: [05/2005 -
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Title: CRUISE CONTROL: CRUISE CONTROL SYSTEM: Cruise Control Switch Circuit; 2006 MY LX470 [05/2005 - ] |
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Cruise Control Switch Circuit
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DESCRIPTION
This circuit carries the -/SET, +/RESUME and CANCEL signals (each voltage) to the ECM.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
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1.
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CHECK ECM (CCS VOLTAGE)
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(a) Remove the ECM with the connector still connected.
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(b) Turn the ignition switch ON.
(c) Measure the voltage between terminal CCS of the E9 ECM connector and body ground, when each of the -/SET, +RES and CANCEL switches are turned ON.
Standard voltage:
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Switch Position
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Specified Condition
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Neutral
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10 to 14 V
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+/RES
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2.3 to 4 V
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-/SET
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4.5 to 7.1 V
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CANCEL
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6.6 to 10.1 V
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| OK |
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PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
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| NG |
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2.
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INSPECT CRUISE CONTROL MAIN SWITCH
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(a)
Remove the steering wheel center pad
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(b) Disconnect the control switch connector.
(c) Measure the resistance between terminals 4 and 5 of the cruise control switch connector when the control switch is operated.
Standard resistance:
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Switch Position
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Specified Condition
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Neutral
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∞ (No continuity)
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+/RES
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216 to 264 Ω
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-/SET
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567 to 693 Ω
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CANCEL
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1,386 to 1,694 Ω
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(d) Check continuity between terminals 4 and 5 of the control switch connector when the main switch is held on and off.
OK:
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Tester Condition
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Switch Position
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Specified Condition
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4 - 5
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OFF
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No continuity
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4 - 5
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ON
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Continuity
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| NG |
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REPLACE CRUISE CONTROL MAIN SWITCH
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| OK |
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3.
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CHECK WIRE HARNESS (CRUISE CONTROL MAIN SWITCH - ECM AND BODY GROUND)
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| NG |
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REPAIR OR REPLACE HARNESS AND CONNECTOR
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| OK |
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4.
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CHECK CRUISE MAIN INDICATOR LIGHT
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(a)
Check CRUISE main indicator light
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| NG |
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REPLACE COMBINATION METER ASSEMBLY
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| OK |
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REPLACE ECM
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