117
DTC 135 FRP Open/Short/High
Step Action Value(s) Yes No
1
Did you perform the On-Board (OBD) System
Check?
Go to Step
(2)
Go to OBD
System
Check Sec-
tion
2
Key ON
DST (Diagnostic Scan Tool) connected
with the Voltages and Service windows
displayed.
Does the DST display FRP (Fuel Rail Pres-
sure) voltage less than 0.20 volts?
Less than
0.20 volts?
Go to Step
(4)
Go to Step
(3)
3
Key OFF
Disconnect the FRP sensor connector
C016 from the wiring harness.
Jump the 5 volt reference B and FRP sig-
nal circuit C together.
Key ON
Does the DST display FRP voltage greater
than 4.90 volts?
Greater
than 4.90
volts
Go to Step
(6)
Go to Step
(5)
4
Inspect FRP connector and pins for corrosion,
contamination or mechanical damage.
Any problems found?
Repair the
circuit as
necessary.
See wire
harness re-
pair section.
Go to Step
(5)
5
Replace FRP Sensor.
Is the replacement complete?
Go to Step
(12)
6
Key ON
Using a DVOM check for voltage between
FRP connector 5 volt reference ECU-B J2
and sensor ground pin A.
Does the DVOM display a voltage greater
than 4.90 volts?
Greater
than 4.90
volts
Repair the 5
volt refer-
ence circuit
as neces-
sary. See
wire harness
repair sec-
tion
Go to Step
(7)
7
Key OFF
Disconnect ECU-B connector
Check for continuity between FRP sensor
connector C and ECM signal pin J3.
Do you have continuity between them?
Go to Step
(8)
Repair the
open signal
circuit. See
wire harness
repair sec-
tion.
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