lexus Workshop Repair Guides

Lexus Workshop Service and Repair Manuals

Component Tests and General Diagnostics|Page 240 > < Component Tests and General Diagnostics
Page 2
background image

Text in Illustration

NG --  CHECK HARNESS AND CONNECTOR (ECM - BODY GROUND)

OK --  PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE  See: Powertrain
Management/Computers and Control Systems/Testing and Inspection/Symptom Related Diagnostic Procedures

2. CHECK HARNESS AND CONNECTOR (ECM - BODY GROUND)

(a) Disconnect the ECM connector.

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance (Check for Open):

(c) Reconnect the ECM connector.

NG --  REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

3. INSPECT ECM (IGSW VOLTAGE)

(a) Turn the engine switch on (IG).

(b) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Text in Illustration

Component Tests and General Diagnostics|Page 240 > < Component Tests and General Diagnostics