Pattern Select Switch Circuit
L110F HYBRID VEHICLE CONTROL: HYBRID CONTROL SYSTEM: Pattern Select Switch Circuit
Pattern Select Switch Circuit
DESCRIPTION
The pattern select switch is built into the combination switch assembly. Pattern select switch signals are sent to the outer mirror switch assembly via LIN communication. The signals are then sent to the hybrid vehicle control ECU via CAN communication. If pattern select switch signals are input to the hybrid vehicle control ECU, the ECU sends signals to the combination meter assembly via CAN communication to turn on the corresponding mode light.
INSPECTION PROCEDURE
PROCEDURE
1. READ VALUE USING INTELLIGENT TESTER OR TECHSTREAM (BUS CHECK)
HINT: ECUs that are correctly connected to the CAN communication system can be displayed on the intelligent tester or Techstream.
(a) Connect the intelligent tester or Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Select the following menu items:
(1) Intelligent tester - Select: DIAGNOSIS / OBD/MOBD / BUS CHECK.
(2) Techstream - Select: System Select / CAN Bus Check.
Result:
B -- GO TO CAN COMMUNICATION SYSTEM
A -- Continue to next step.
2. CHECK DTC OUTPUT (ALL DTC CODE)
(a) Check for DTCs of all systems by following the prompts on the tester screen.
Result:
B -- GO TO DTC CHART
A -- Continue to next step.
3. PERFORM ACTIVE TEST USING INTELLIGENT TESTER OR TECHSTREAM (METER)
(a) Select the following menu items:
(1) Intelligent tester - Select: DIAGNOSIS / OBD/MOBD / BODY SYSTEM / METER / ACTIVE TEST / ECT PWR INDC, ECT SNOW INDC.
(2) Techstream - Body Electrical / Combination Meter / Active Test / Indicat. Lamp ECT PWR, Indicat. Lamp ECT SNOW.
(b) Check the condition of the pattern select indicator light by operating the tester.
Intelligent Tester:
Techstream:
Result:
B -- GO TO METER / GAUGE SYSTEM
A -- Continue to next step.
4. READ VALUE USING INTELLIGENT TESTER OR TECHSTREAM (CENTER CONSOLE)
(a) Select the following menu items:
(1) Intelligent tester - Select: DIAGNOSIS / OBD/MOBD / BODY / CENTER CONSOLE / DATA LIST / ECT PWR SW, ECT SNOW SW.
(2) Techstream - Select: Body Electrical / Center Console Switch / Data List / ECT Power Mode Switch, ECT Snow Mode Switch.
(b) Read the value displayed on the tester.
Intelligent Tester:
Techstream:
Result:
B -- REPLACE COMBINATION SWITCH ASSEMBLY
A -- CHECK FOR INTERMITTENT PROBLEMS