Subsection 01 (ELECTRONIC FUEL INJECTION (EFI))
vmr2016-045-001_a
1. Monitoring tab
2. MAPTS temperature reading
4. Perform the same test with a new MAPTS and
compare both readings.
If the engine MAPTS temperature reading is sig-
nificantly different than the new MAPTS, replace
it.
NOTE:
Both sensors must feel the same ambient
air temperature.
If there is no reading, carry out a
MAPTS RESIS-
TANCE TEST (TEMPERATURE FUNCTION)
.
Testing the MAPTS Resistance (Temperature
Function)
Disconnect the connector from the MAPTS.
Using a multimeter, check the resistance of the
sensor itself as shown.
MAPTS
MEASUREMENT
PIN
RESISTANCE
@ 20°C (68°F)
1
2
2280 - 2740
If resistance is not within specification, replace
the MAPTS.
If resistance tests good,
reconnect
the MAPTS
and disconnect the ECM connector.
Install the ECM adapter tool on the ECM connec-
tor.
Using a multimeter, recheck resistance value as
per following table.
ECM ADAPTER
MEASUREMENT
PIN
RESISTANCE
@ 20°C (68°F)
F3
G2
2280 - 2740
MAPTS TEMPERATURE SENSOR TEST RESULTS
RESULT
SERVICE ACTION
NO
READING
Circuit
Continuity
Test of
MAPTS
Temperature
Function
MAPTS
Input
Voltage
Test
Repair or
replace
wiring
INCORRECT
RESISTANCE
VALUE
Replace MAPTS
Testing the MAPTS Circuit Continuity
(Temperature Function)
MAPTS CIRCUIT CONTINUITY TEST
(TEMPERATURE FUNCTION)
ECM
ADAPTER
MAPTS
CONNECTOR
RESISTANCE
VALUE
G2
Pin 1
F3
Pin 2
Close to 0
Replacing the MAPTS
vmr2006-012-004_e
1. MAPTS
2. Retaining screw
Disconnect MAPTS connector and remove the
MAPTS.
Install new MAPTS as per following table.
20
vmr2016-423