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

On Board Diagnosis Logic
Malfunction is detected when the signal of the park/neutral position (PNP) switch is not changed in the process of engine starting and driving.

Possible Cause
- Harness or connectors
[The park/neutral position (PNP) switch circuit is open or shorted.]
- Park/neutral position (PNP) switch

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-II
1. Turn ignition switch "ON".

2. Select "P/N P081 SW" in "DATA MONITOR" mode with CONSULT-II. Then check the "P/N P051 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-II.
4. Start engine and warm it up to normal operating temperature.

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

CKPS-RPM (POS) 1,800 - 2,600 rpm (A/T)
1,600 - 2,400 rpm (M/T)
COOLAN TEMP/S More than 70° C (158° F)
B/FUEL SCHDL 2 - 10 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.

WITH GST
1. Turn ignition switch "ON".
2. Check voltage between ECM terminal 44 and body ground under the following Conditions.

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

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