Pinpoint Test D : TR (Transmission Range) Sensor
Pinpoint Tests - OSC Equipped Vehicle
Pinpoint Tests
PINPOINT TEST D : TR (Transmission Range) SENSOR
NOTE: Refer to the transaxle connector illustrations and solenoid body leadframe internal wiring diagram Transaxle Connector Layouts .
NOTE: Transmission Range (TR) codes may be a result of a bad common power and ground shared between the TR (Transmission Range) sensor, Output Shaft Speed (OSS) sensor and Turbine Shaft Speed (TSS) sensor.
D1 VERIFY DTCs
- Ignition OFF.
- Select PARK.
- Start the engine.
- Carry out the On-Board Diagnostic (OBD) Test. DTCs P0706, P0707 and P0708 cannot be set by an incorrectly adjusted selector lever cable.
Are only TR (Transmission Range) DTC codes present?
Yes
GO to D3.
No
GO to D2.
D2 VERIFY SELECTOR LEVER CABLE/LINKAGE ADJUSTMENT
- Verify that the selector lever cable/linkage is correctly adjusted.
Refer to Automatic Transmission/Transaxle.
Is the selector lever cable/linkage correctly adjusted?
Yes
GO to D3.
No
ADJUST the selector lever cable/linkage. REFER to Automatic Transmission/Transaxle. GO to D4.
D3 CHECK THE ELECTRICAL SIGNAL OPERATION
- Select PARK.
- Disconnect: PCM Transaxle C175T.
- Disconnect: Transaxle Vehicle Harness C1520A.
- Use a mirror to inspect both ends of the connectors for damaged or pushed-out terminals, corrosion, loose wires and missing or damaged seals.
Is there damage to the connectors, terminals or harness?
Yes
REPAIR as required. CLEAR the DTCs and RERUN OBD (On-Board Diagnostic) tests.
No
GO to D4.
D4 CHECK ELECTRICAL SYSTEM OPERATION (TR (Transmission Range) AND PCM)
- Ignition OFF.
- Connect the scan tool.
- Connect: PCM Transaxle Harness C175T.
- Connect: Transaxle Vehicle Harness C1520A.
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: TR PIDs TR_DC and TR_FREQ.
- Move the selector lever into each gear and stop.
- Observe the following PIDs; TR_DC and TR_FREQ while wiggling harness or driving the vehicle.
- Monitor PID: TR_FREQ.
- Compare the PID: TR_DC to the TR (Transmission Range) position Duty Cycle Chart.
Selector Lever Position Range (% Duty Cycle) P 8.0- 25.8 R 37.50- 49.31 N 54.54- 62.49 D 67.35- 81.15 L 81.15- 92
Is PID TR_FREQ between 100 to 150 Hz?
Is PID TR_DC in range?
Do the PIDs TR_DC and TR_FREQ remain steady when the harness is wiggled or the vehicle driven?
Yes
The problem is not in the TR (Transmission Range) sensor system. REFER to Diagnosis By Symptom Diagnosis By Symptom for further diagnosis.
No
If the PIDs change when wiggling the harness or driving the vehicle, the problem may be intermittent. GO to D5.
D5 CHECK THE TRANSAXLE VEHICLE HARNESS FOR AN OPEN
- Disconnect: PCM Transaxle Harness C175T.
- Disconnect: Transaxle Vehicle Harness C1520A.
- Measure the resistance for the TR (Transmission Range) sensor circuits between the transaxle vehicle harness C1520A and the PCM transaxle harness C175T using the following chart.
Transmission Range Sensor Circuit Transaxle Vehicle Harness PCM TR (Transmission Range) Ground RET24 (BN/BU) C1520A-20 C175T-36 TR (Transmission Range) Signal VET32 (VT) C1520A-17 C175T-39 TR (Transmission Range) Power LE111 (VT/GN) C1520A-18 C175T-1
Is the resistance less than 5 ohms?
Yes
GO to D6.
No
REPAIR the circuit. CONNECT all components. TEST the system for normal operation.
D6 CHECK THE TRANSAXLE VEHICLE HARNESS FOR A SHORT TO GROUND
- Disconnect: Transaxle Vehicle Harness C1520B.
- Measure the resistance for the TR (Transmission Range) sensor circuits between the transaxle vehicle harness C1520A and ground using the following chart.
Transmission Range Sensor Circuit Transaxle Vehicle Harness Ground TR (Transmission Range) Ground RET24 (BN/BU) C1520A-20 Ground TR (Transmission Range) Signal VET32 (VT) C1520A-17 Ground TR (Transmission Range) Power LE111 (VT/GN) C1520A-18 Ground
Are all resistances greater than 10,000 ohms?
Yes
GO to D7.
No
REPAIR shorted circuit(s). RECONNECT all components. TEST the system for normal operation.
D7 CHECK THE TRANSAXLE VEHICLE HARNESS FOR A SHORT TO POWER
- Measure the voltage for the TR (Transmission Range) sensor circuits between the transaxle vehicle harness C1520A and ground using the following chart.
Transmission Range Sensor Circuit Transaxle Vehicle Harness Ground TR (Transmission Range) Ground RET24 (BN/BU) C1520A-20 Ground TR (Transmission Range) Signal VET32 (VT) C1520A-17 Ground TR (Transmission Range) Power LE111 (VT/GN) C1520A-18 Ground
Is any voltage present?
Yes
REPAIR shorted circuit(s). RECONNECT all components. TEST the system for normal operation.
No
GO to D8.
D8 CHECK FOR A SHORT BETWEEN TR (Transmission Range) /PCM INPUT SIGNAL CIRCUITS
- Measure the resistance between TR (Transmission Range) sensor circuits at the transaxle vehicle harness C1520A using the following chart.
Transaxle Vehicle Harness TR Sensor Circuit Transaxle Vehicle Harness C1520A-20 TR (Transmission Range) Ground RET24 (BN/BU) C1520A-17 and C1520A-18C1520A-17 TR (Transmission Range) Signal VET32 (VT) C1520A-18 and C1520A-20C1520A-18 TR (Transmission Range) Power LE111 (VT/GN) C1520A-17 and C1520A-20
Are all resistances greater than 10,000 ohms?
Yes
GO to D9.
No
REPAIR shorts on circuits having less than 10,000 ohms between other TR (Transmission Range) /PCM input signal circuits. RECONNECT all components. TEST the system for normal operation.
D9 CHECK FOR AN INTERNAL SOLENOID BODY OPEN FOR THE TR (Transmission Range) SENSOR CIRCUITS
- Remove the main control cover. Refer to Main Control Cover .
- Disconnect: TR (Transmission Range) Sensor Connector.
- Use a mirror to inspect both ends of the connector for damage or pushed-out terminals, corrosion, loose wires and missing or damaged seals.
- Measure the resistance of the TR (Transmission Range) sensor circuits between the solenoid body leadframe main connector, component side and the TR (Transmission Range) sensor connector, leadframe side.
Solenoid Body Leadframe Main Connector Pin Number TR Sensor Pin Number Circuit Function (Wire Color) 18 1 Transmission Range (TR) power (RD) 17 2 TR (Transmission Range) signal (WH) 20 3 TR (Transmission Range) ground (BK)
Is the resistance less than 5 ohms?
Yes
GO to D10.
No
INSTALL a new solenoid body leadframe. REFER to Solenoid Body Leadframe . RECONNECT all components. TEST the system for normal operation.
D10 CHECK FOR VOLTAGE AND GROUND AT THE TR (Transmission Range) SENSOR CONNECTOR
- Connect: PCM C175T.
- Connect: Transaxle Vehicle Harness C1520A.
- Ignition ON.
- Measure the voltage on the solenoid body leadframe between TR (Transmission Range) sensor connector pins 1 (RD) and 3 (BK) solenoid body leadframe side.
Is the voltage greater than 10 volts?
Yes
INSTALL a new TR (Transmission Range) sensor. REFER to Digital Transmission Range (TR) Sensor . TEST the system for normal operation. If the condition is still present, INSTALL a new PCM.
No
INSTALL a new PCM. CONNECT all components. TEST the system for normal operation.