Toyota Celica 2005 Repair Manual page 809

DI−610
OBD II scan tool (excluding hand−held tester):
1 Check voltage between terminals VPA and EPA, VPA2 and EPA2 of ECM termi-
nals.
A19521
NG
2 Check for open and short in harness and connector between accelerator pedal
position sensor and ECM (See page IN−30).
OK
Replace accelerator pedal assembly
(See page SF−76).
2005 CELICA (RM1131U)
DIAGNOSTICS
PREPARATION:
Turn the ignition switch ON.
VPA2 VPA
CHECK:
Measure the voltage between terminals VPA and EPA, VPA2
and EPA2 of the ECM connectors.
OK:
Accelerator Pedal Position
EPA2
EPA
A19629
− ENGINE (2ZZ−GE)
Released
Depressed
OK Replace ECM (See page SF−78).
NG Repair or replace harness or connector.
808
Tester Connection Tester Connection
VPA − EPA
0.5 to 1.1 V
2.6 to 4.5 V
VPA2 − EPA2
1.2 to 2.0 V
3.4 to 5.3 V