Inspection Procedure
- READ VALUE USING TECHSTREAM (D-ACC RELAY MONITOR)
- Use the Data List to check if the ACC relay is functioning properly.
Main Body
ITEM RANGE REFERENCETester Display Measurement Item/Range Normal Condition Diagnostic Note ACC Relay Monitor D-ACC relay monitor/ON or OFF ON: Engine switch on (IG)
OFF: Engine switch off- OK: When the engine switch is turned on (IG), ON is displayed on the Techstream.
NG: Go to step 3
OK: Go to next step.
- Use the Data List to check if the ACC relay is functioning properly.
- CHECK ENGINE SWITCH (SWITCH CONDITION)
- Ensure the key is inside the cabin.
- Check that the power source mode changes as shown below each time the engine switch is pushed.
OK: off → on (ACC) → on (IG) → off
NG: GO TO POWER SOURCE MODE DOES NOT CHANGE
OK: NORMAL
- CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - BODY GROUND)
- Disconnect the L13, DF and DA main body ECU connectors.
- Measure the resistance and voltage according to the value(s) in the table below.
Standard resistance
RESISTANCE REFERENCETester Connection Condition Specified Condition L13-22 (ACCD) - DA-19 Always Below 1 Ω L13-22 (ACCD) or DA-19 - Body ground Always 10 kΩ or higher DA-40 - Body ground Always Below 1 Ω Standard voltage
VOLTAGE SPECIFICATIONTester Connection Condition Specified Condition DF-1 - Body ground Always 11 to 14 V NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
OK: REPLACE MAIN BODY ECU