Specifications

ON-BOARD DIAGNOSTIC
F161
F
Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
• Has FREEZE FRAME DATA been recorded?
Yes Go to next step.
No Record FREEZE FRAME DATA on repair order, then go to
next step.
2 VERIFY RELATED SERVICE INFORMATION
AVAILABILITY
• Check for related Service Information
availability.
• Is any related Service Information available?
Yes Perform repair or diagnosis according to available Service
Information.
• If vehicle is not repaired, go to next step.
No Go to next step.
3 CLASSIFY HIGH INPUT OR LOW INPUT
• Connect WDS or equivalent to DLC-2.
• Access CPP/PNP PID.
• Verify CPP/PNP PID when gear is neutral
position.
• Is CPP/PNP PID always OFF?.
Yes Go to Next step.
No Go to Step 10.
4 INSPECT NEUTRAL SWITCH CONNECTOR
FOR POOR CONNECTION
• Turn ignition switch to OFF.
• Disconnect neutral switch connector.
• Inspect for poor connection (damaged/pulled-
out terminals, corrosion, etc.).
• Is there malfunction?
Yes Repair or replace terminal, then go to Step 14.
No Go to next step.
5 CLASSIFY NEUTRAL SWITCH OR CIRCUIT
• Connect WDS or equivalent to DLC-2.
• Access CPP/PNP PID.
• Connect a jumper wire between neutral switch
terminal A and B.
• Is CPP/PNP PID on?
Yes Go to next step.
No Go to Step 7.
6 INSPECT NEUTRAL SWITCH
• Perform neutral switch inspection.
(See F59 NEUTRAL SWITCH INSPECTION.)
• Is neutral switch okay?
Yes Go to Step 14.
No Replace neutral switch, then go to Step 14.
DTC P0850 Neutral switch circuit malfunction