P1706

Component Description
When the gear position is "P" (A/T models only) or "N", park/neutral position (PNP) switch is "ON".

ECM detects the position because the continuity of the line (the "ON" signal) exists.

For A/T models, the park/neutral position (PNP) switch assembly also includes a transmission range switch to detect selector lever position.

CONSULT Reference Value in Data Monitor Mode
Specification data are reference values.

ECM Terminals and Reference Value
Specification data are reference values and are measured between each terminal and 32 (ECM ground).

On Board Diagnosis Logic:

DTC Confirmation Procedure

CAUTION: Always drive vehicle at a safe speed.

NOTE: If "DTC Confirmation Procedure" has been previously conducted, always turn ignition switch "OFF" and wait at least 5 seconds before conducting the next test.

With CONSULT
1. Turn ignition switch "ON".

2. Perform "PARK/NEUT POST SW CKT" in "FUNCTION TEST" mode with CONSULT.
If NG, go to "Diagnostic Procedure" below. If OK, go to following step.
3. Select "DATA MONITOR" mode with CONSULT.
4. Start engine and warm it up to normal operating temperature.

5. Maintain the following conditions for at least 60 consecutive seconds.

CMPS.RPM (POS) 1,600 - 2650 rpm
COOLAN TEMP/S More than 70°C (155°F)
B/FUEL SCHDL 1.7 - 6.5 msec
VHCL SPEED SE 70 - 100 kph (43 - 75 MPH)
Selector lever Suitable position

6. If 1st trip DTC is detected, go to "Diagnostic Procedure" below.

With CONSULT
1. Turn ignition switch "ON".

2. Select "P/N POSI SW" in "DATA MONITOR" mode with CONSULT. Then check the "P/N POSI SW" signal under the following conditions.

Position (Selector lever) Known good signal
"N" and "P" position ON
Except the above position OFF

If NG, go to "Diagnostic Procedure" below.
If OK, go to following step.

3. Select "DATA MONITOR" mode with CONSULT.
4. Start engine and warm it up to normal operating temperature.

5. Maintain the following conditions for at least 60 consecutive seconds.

CMPS.RPM (POS) 1,600 - 2,650 rpm
COOLAN TEMP/S More than 70°C (158°F)
B/FUEL SCHDL 1.7 - 6.5 msec
VHCL SPEED SE 70 - 100 kph (43 - 75 MPH)
Selector lever Suitable position

6. If 1st trip DTC is detected, go to "Diagnostic Procedure" below.

Overall Function Check
Use this procedure to check the overall function of the park/neutral position (PNP) switch circuit. During this check, a 1st trip DTC might not be confirmed.

Without CONSULT
1. Turn ignition switch "ON".
2. Check voltage between ECM terminal 22 and body ground under the following conditions.

Condition (Gear position) Voltage (V) (Known good data.
"N" and "P" position Approx. 0
Except the above position Approx. 5

3. If NG, go to "Diagnostic Procedure" below.

Wiring Diagram