Briggs & Stratton VANGUARD 810 EFI User Manual

Section 2: Troubleshooting DTCs 27
Step Action Yes No
1
1. Disconnect and reconnect MAT sensor and
ECM J2 (Black) connectors.
2. Turn Ignition ON, Engine OFF.
3. Clear codes.
4. Turn Ignition OFF, and then back ON.
5. Does DTC return?
Go to step 2.
Problem
corrected.
2
1. Turn Ignition OFF.
2. Back probe terminal 2 (Red/White wire) of
MAT sensor connector.
3. Connect terminal 2 back probe to red meter
test lead on DVOM.
4. Back probe terminal 4 (Brown wire) of MAT
sensor connector.
5. Connect terminal 4 back probe to black meter
test lead on DVOM.
6. Set DVOM to read volts DC.
7. Turn Ignition ON, Engine OFF.
8. Does DVOM read 4.7-5.0 volts DC?
MAT sensor OK. Go to step 3.
3
1. Turn Ignition OFF.
2. Remove probe from terminal 2, and back
probe terminal 3 (Tan/Black wire) of MAT sen-
sor connector.
3. Turn Ignition ON, Engine OFF.
4. Does DVOM read 0.5-4.5 volts DC?
MAT sensor OK.
Reading is below
0.5 volts DC.
Replace
MAT sensor.
4
1. Turn Ignition OFF.
2. Remove probe from terminal 3, and back
probe ECM connector terminal J2-08 (Tan/
Black wire).
3. Turn Ignition ON, Engine OFF.
4. Does DVOM read 0.5-4.5 volts DC?
MAT sensor
circuit OK.
Go to step 5.
5
Are both MAT sensor and ECM J2 connectors
fully mated?
Repair or replace
EFI wire harness.
Connect
connectors.
DTC P0112 Manifold Air Temperature (MAT) Sensor
Non-Scan Diagnostics
1
9
10
18
J2-08
32
4
Figure 2-16 MAT Sensor Connector. Figure 2-17 ECM J2 Connector (Black).

Briggs & Stratton VANGUARD 810 EFI Specifications

General

Brand	Briggs & Stratton
Model	VANGUARD 810 EFI
Category	Engine
Language	English