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5 DETECT MALFUNCTIONING PART
Check the following.
I Harness connectors M161, F68
I Harness for open or short between ECM and accelerator pedal position sensor
© Repair open circuit or short to ground or short to power in harness or connectors.
6 CHECK APP SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 73 and APP sensor terminal 5, ECM terminal 74 and APP sensor ter-
minal 2.
Refer to Wiring Diagram
Continuity should exist.
3. Also check harness for short to ground and short to power.
OK or NG
OK © GO TO 8.
NG © GO TO 7.
7 DETECT MALFUNCTIONING PART
Check the following.
I Harness connectors M161, F68
I Harness for open or short between ECM and accelerator pedal position sensor
© Repair open circuit or short to ground or short to power in harness or connectors.
8 CHECK APP SENSOR
Refer to “Component Inspection”, EC-309.
OK or NG
OK © GO TO 9.
NG © Replace accelerator pedal assembly.
9 CHECK INTERMITTENT INCIDENT
Refer to “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-156.
© IINSPECTION END
SEC901C
Component Inspection
NFEC1385
ACCELERATOR PEDAL POSITION SENSOR
1. Reconnect all harness connectors disconnected.
2. Turn ignition switch “ON”.
3. Check voltage between ECM terminals 73 (APP sensor 1
signal), 74 (APP sensor 2 signal) and engine ground under the
following conditions.
GI
MA
EM
LC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P0226 APP SENSOR
Diagnostic Procedure (Cont’d)
EC-309
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