ON-BOARD DIAGNOSTIC
DTC P1504
Except for GF4A-EL Models
DTC P1504
IAC valve circuit malfunction
DETECTION
CONDITION
• If PCM detects that PCM terminal 4M voltage is above threshold* or below threshold* when IAC
control duty target is
within 18—70
%, PCM determines that IAC valve circuit has malfunction.
*:When detected the threshold value depends on battery voltage and IAC control signal duty value.
POSSIBLE
CAUSE
IAC valve circuit malfunction
Short to ground between IAC valve terminal A and PCM terminal 4M
Open circuit between IAC valve terminal A and PCM terminal 4M
Short to ground between IAC valve terminal B and PCM terminal 40
Short to power between IAC valve terminal B and PCM terminal 4 0
Open circuit between IAC valve terminal B and PCM terminal 4 0
Poor connection of IAC valve connector or PCM connector
PCM malfunction
PCM
IAC VALVE
IAC VALVE
HARNESS SID E C O N N E C TO R
(VIEW FR O M TER M IN A L SID E )
54
PCM
r r t i
th
1T 7
M - , i , i , i , r 0 i '
i
.
i
; i :
i
.
i
: t .
i
: i' r i v r T
83
7
HAR NESS SID E CO NN ECTO R
(VIEW FR O M TER M INAL SIDE)
Diagnostic procedure
STEP
INSPECTION
ACTION
1
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
• Check for related Service Information
availability.
• Is any service Information available?
Yes
Perform repair or diagnosis according to available
Service Information.
• If vehicle is not repaired, then go to next step.
No
Go to next step.
2
CLASSIFY INTERMITTENT CONCERN OR
CONTINUOUS CONCERN
• Clear DTC from memory using NGS tester.
• Start engine and warm it up completely.
• Is same DTC detected?
Yes
Go to next step.
No
Go to intermittent concern.
(See F1-142 No.26 INTERMITTENT CONCERNS)
F1-80
Содержание 626 Station Wagon
Страница 25: ...CONTROL SYSTEM WIRING DIAGRAM With Immobilizer System OUTLINE F1 4 ...
Страница 179: ...OUTLINE SYSTEM WIRING DIAGRAM S m ç g fT I C g 3 3 21 A m Hi p È a t ï S 3 M h d 0H ÜB 1 Hl J e F2 3 ...
Страница 183: ...CONTROL SYSTEM COMPONENT LOCATION F2 7 ...
Страница 204: ...MANUAL TRANSAXLE FEATURES OUTLINE J 2 OUTLINE OF CONSTRUCTION J 2 SPECIFICATIONS J 2 D J 1 ...
Страница 206: ...AUTOMATIC TRANSAXLE GF4A EL FEATURES OUTLINE K1 2 OUTLINE OF CONSTRUCTION K 1 2 SPECIFICATION K1 2 K1 1 ...
Страница 266: ...SHIFT MECHANISM 6 Apply grease to the cam as shown K2 59 ...
Страница 418: ...TROUBLESHOOTING KEYLESS ENTRY SYSTEM ON BOARD DIAGNOSTIC FUNCTION S 37 ...
Страница 454: ...WARNING AND INDICATOR SYSTEM O p e ra tin g O rd e r T 32 ...