Park / Neutral Position Switch Circuit

CRUISE CONTROL: CRUISE CONTROL SYSTEM: Park / Neutral Position Switch Circuit

Park / Neutral Position Switch Circuit

DESCRIPTION

The park / neutral position switch circuit inspection is necessary for automatic transaxle equipped vehicle.
When the shift lever is in any position except D, a signal is sent from the park / neutral position switch to the ECM. When this signal is input during cruise control driving, the ECM cancels the cruise control.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHOOSE DIAGNOSIS METHOD
(a) Choose the diagnosis method.






B -- CHECK WIRE HARNESS (ECM - BATTERY)
A -- Continue to next step.
2. READ VALUE ON INTELLIGENT TESTER
(a) Connect the intelligent tester to the DLC3.
(b) Turn the ignition switch to the ON position and turn the intelligent tester main switch on.
(c) Select the item below in the "DATA LIST", and read the display on the intelligent tester.
ECM (Cruise Control) :






OK:
When the shift lever is operated, the display changes as shown above.
OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
NG -- Continue to next step.
3. CHECK WIRE HARNESS (ECM - BATTERY)





(a) Disconnect the E5 connector from the ECM.
(b) Turn the ignition switch to the ON position.
(c) Measure the voltage according to the value(s) in the table below.
Standard voltage:






OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
NG -- Continue to next step.
4. INSPECT PARK / NEUTRAL POSITION SWITCH ASSEMBLY





(a) Disconnect the P1 park / neutral position switch connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:






NG -- REPLACE PARK / NEUTRAL POSITION SWITCH ASSEMBLY
OK -- Continue to next step.
5. CHECK WIRE HARNESS (PARK / NEUTRAL POSITION SWITCH - ECM)





(a) Measure the resistance according to the value(s) in the table below.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- REPAIR OR REPLACE HARNESS AND CONNECTOR (PARK / NEUTRAL POSITION SWITCH - BATTERY)