REAR SUNSHADE SYSTEM TERMINALS OF ECU

CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

1. Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly.

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2. Reconnect the instrument panel junction block assembly connectors.

3. Measure the voltage and resistance according to the value(s) in the table below.

   Tip:

   Measure the values on the wire harness side with the connector disconnected.

   Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
   MB-11 (GND1) - Body ground	-	Ground	Always	Below 1 Ω
   MB-31 (BECU) - Body ground	-	Battery power supply	Always	11 to 14 V
   MB-32 (IG) - Body ground	-	IG power supply	Ignition switch off	Below 1 V
   			Ignition switch ON	11 to 14 V
   MB-30 (ACC) - Body ground	-	ACC power supply	Ignition switch off	Below 1 V
   			Ignition switch ACC	11 to 14 V

4. Install the main body ECU (multiplex network body ECU) to the instrument panel junction block assembly.

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

   Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
   K51-6 (REV) - Body ground	B - Body ground	Reverse signal	Ignition switch ON, shift lever in any position other than R	11 to 14 V
   			Ignition switch ON, shift lever in R	Below 1 V

CHECK REAR WINDOW SHADE ASSEMBLY

1. Disconnect the R64 rear window shade assembly connector.

2. Measure the voltage and resistance according to the value(s) in the table below.

   Tip:

   Measure the values on the wire harness side with the connector disconnected.

   Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
   R64-8 (B) - Body ground	LA-G - Body ground	Battery power supply	Always	11 to 14 V
   R64-7 (IG) - Body ground	B - Body ground	IG power supply	Ignition switch off	Below 1 V
   			Ignition switch ON	11 to 14 V
   R64-1 (E) - Body ground	LA - Body ground	Ground	Always	Below 1 Ω

3. Reconnect the R64 rear window shade assembly connector.

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

   Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
   R64-3 (REV) - R64-1 (E)	LG - LA	Reverse signal	Ignition switch ON, shift lever in any position other than R	11 to 14 V
   			Ignition switch ON, shift lever in R	Below 1 V
   R64-5 (SW) - R64-1 (E)	GR - LA	Rear window shade assembly operation signal	Procedure: Ignition switch ON Select Open or Close on the rear sunshade screen of the multi-information display.	5.5 V or higher → Below 1 V → 5.5 V or higher
   R64-4 (RSW) - R64-1 (E)	BE - LA	Rear window shade assembly operation signal	Ignition switch ON, rear sunshade switch (cooler control switch assembly) not touched	5.5 V or higher
   			Ignition switch ON, rear sunshade switch (cooler control switch assembly) touched	5.5 V or higher → Below 1 V → 5.5 V or higher

CHECK COMBINATION METER ASSEMBLY

1. Disconnect the K21 combination meter assembly connector.

2. Measure the voltage and resistance according to the value(s) in the table below.

   Tip:

   Measure the values on the wire harness side with the connector disconnected.

   Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
   K21-40 (B) - Body ground	LA-B - Body ground	Battery power supply	Always	11 to 14 V
   K21-39 (IG+) - Body ground	LA-GR - Body ground	IG power supply	Ignition switch off	Below 1 V
   			Ignition switch ON	11 to 14 V
   K21-21 (ES) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω

3. Reconnect the K21 combination meter assembly connector.

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

   Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
   K21-22 (ECU) - Body ground	BE - Body ground	Rear window shade assembly operation signal	Procedure: Ignition switch ON Select Open or Close on the rear sunshade screen of the multi-information display.	5.5 V or higher → Below 1 V → 5.5 V or higher