Electronic Shift Lever System
P410 HYBRID TRANSMISSION / TRANSAXLE: ELECTRONIC SHIFT LEVER SYSTEM: "P" Position Switch Indicator Light Circuit
- "P" Position Switch Indicator Light Circuit
DESCRIPTION
The indicator light comes on when the P position switch (transmission shift main switch) is pressed (park (P) selected), goes off when a shift state other than park (P) is selected and goes off when a system malfunction occurs. Then an error message is displayed on the multi display.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
1. CHECK TRANSMISSION SHIFT MAIN SWITCH (INDICATOR LIGHT)
(a) Turn the power switch on (IG).
(b) Depress the brake pedal and move the shift lever to select neutral (N).
(c) Inspect the indicator light condition by operating the P position switch (transmission shift main switch).
Result:
(d) Turn the power switch off.
B -- CHECK HARNESS AND CONNECTOR (TRANSMISSION SHIFT MAIN SWITCH POWER SOURCE CIRCUIT)
A -- Continue to next step.
2. CHECK TRANSMISSION SHIFT MAIN SWITCH (INDICATOR LIGHT)
(a) Disconnect connector A23 from the transmission control ECU assembly.
(b) Turn the power switch on (IG).
(c) Inspect the indicator light condition by operating the P position switch (transmission shift main switch).
Result:
NOTICE:
Turning the power switch on (IG) with the transmission control ECU assembly connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.
(d) Turn the power switch off.
(e) Connect the transmission control ECU assembly connector.
B -- REPLACE TRANSMISSION CONTROL ECU ASSEMBLY Components
A -- Continue to next step.
3. CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL ECU - TRANSMISSION SHIFT MAIN SWITCH)
(a) Disconnect connector A23 from the transmission control ECU assembly.
(b) Disconnect connector from the P position switch (transmission shift main switch).
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance (Check for Short):
Text in Illustration
(d) Connect the P position switch (transmission shift main switch) connector.
(e) Connect the transmission control ECU assembly connector.
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE TRANSMISSION SHIFT MAIN SWITCH
4. CHECK HARNESS AND CONNECTOR (TRANSMISSION SHIFT MAIN SWITCH POWER SOURCE CIRCUIT)
(a) Disconnect the connector from the P position switch (transmission shift main switch).
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Text in Illustration
(c) Connect the P position switch (transmission shift main switch) connector.
NG -- CHECK AND REPAIR POWER SOURCE CIRCUIT
OK -- Continue to next step.
5. INSPECT TRANSMISSION SHIFT MAIN SWITCH
(a) Disconnect the connector from the P position switch (transmission shift main switch).
(b) Apply auxiliary battery voltage between terminals b1-6 (IND+) and b1-7 (IND-) and check the indicator light.
Result:
Text in Illustration
HINT
Terminals No. 1 and No. 8 on the component side connector are empty.
(c) Connect the P position switch (transmission shift main switch) connector.
NG -- REPLACE TRANSMISSION SHIFT MAIN SWITCH
OK -- Continue to next step.
6. CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL ECU - TRANSMISSION SHIFT MAIN SWITCH)
(a) Disconnect connector A23 from the transmission control ECU assembly.
(b) Disconnect the connector from the P position switch (transmission shift main switch).
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance (Check for Open):
Text in Illustration
(d) Connect the P position switch (transmission shift main switch) connector.
(e) Connect the transmission control ECU assembly connector.
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE TRANSMISSION CONTROL ECU ASSEMBLY Components