Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Charging Timer Switch Circuit [08/2014 - ]: Procedure
- READ VALUE USING TECHSTREAM (CHARGING TIMER SW)
- Connect the Techstream to the DLC3.
- Turn the power switch on (IG).
- Enter the following menus: Powertrain / Plug-in Control / Data List / Charging Timer SW.
- Read the value displayed on the Techstream.
Tester Display Measurement Item/Range Normal Condition Charging Timer SW Charging timer switch status/
ON or OFFON: Charging timer switch operated
OFF: Charging timer switch not operatedOK
The Data List values change in accordance with the status of charging timer switch.
- Turn the power switch off.
NG → See step 2
OK → See step 5
- INSPECT SATELLITE SWITCH SET (CHARGING TIMER SWITCH CHECK)
- Remove the satellite switch set.
- Measure the resistance according to the value(s) in the table below.TEXT IN ILLUSTRATION
*1 Charging Timer Switch - - *A w/o Headup Display *B w/ Headup Display *a Component without harness connected
(Satellite Switch Set)- - Standard Resistance
Tester Connection Switch Condition Specified Condition L57-1 (ECU) - L57-12 (E) Charging timer switch operated Below 1 Ω Charging timer switch not operated 10 kΩ or higher - Install the satellite switch set.
NG → See step 6
OK: Go to next step
- CHECK HARNESS AND CONNECTOR (SATELLITE SWITCH SET - PLUGIN CHARGE CONTROL ECU ASSEMBLY)
- Disconnect connector L57 from the satellite switch set.
- Disconnect connector S31 from the plugin charge control ECU assembly.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition L57-1 (ECU) - S31-17 (PTMS) Power switch off Below 1 Ω L57-1 (ECU) or S31-17 (PTMS) - Body ground and other terminals Power switch off 10 kΩ or higher TEXT IN ILLUSTRATION*a Front view of wire harness connector
(to Satellite Switch Set)*b Rear view of wire harness connector
(to Plugin Charge Control ECU Assembly) - Connect the plugin charge control ECU assembly connector.
- Connect the satellite switch set connector.
NG → REPAIR OR REPLACE HARNESS OR CONNECTOR
OK: Go to next step
- CHECK HARNESS AND CONNECTOR (SATELLITE SWITCH SET - BODY GROUND)
- Disconnect connector L57 from the satellite switch set.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition L57-12 (E) - Body ground Power switch off Below 1 Ω TEXT IN ILLUSTRATION*a Front view of wire harness connector
(to Satellite Switch Set) - Connect the satellite switch set connector.
NG → REPAIR OR REPLACE HARNESS OR CONNECTOR
OK → See step 7
- GO TO PROBLEM SYMPTOMS TABLE. Refer to PROBLEM SYMPTOMS TABLE [08/2014 - ]
- REPLACE SATELLITE SWITCH SET. Refer to COMPONENTS [08/2014 - ]
- CHECK FOR INTERMITTENT PROBLEMS. Refer to CHECK FOR INTERMITTENT PROBLEMS [08/2014 - ]
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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