TROUBLE DIAGNOSIS — GENERAL DESCRIPTION; ECM Terminals and Reference Value (Cont'd) — Inspection Table 1
EF & EC-7065spec tableTerminals 3/4/31/32 grouped because one printed row spans 4 terminals with parallel wire colors and identical condition; transcribed as single rows with grouped fields.
ECM Terminals and Reference Value (Cont'd)
CG10, CGA3
ECM Inspection Table (Terminals 1-14)
1
Wire colorB/Y
ItemFuel pump relay
Condition[Ignition switch "ON"]
- For 1 second after turning ignition switch "ON"
[Engine is running]
Data (DC Voltage)0 - 1 V
1
Wire colorB/Y
ItemFuel pump relay
Condition[Ignition switch "ON"]
- More than 1 second after turning ignition switch "ON"
Data (DC Voltage)BATTERY VOLTAGE (11 - 14 V)
2, 29
Wire colorBR/Y, L/Y
ItemIACV-AAC valve
Condition[Engine is running]
- Idle speed
Data (DC Voltage)BATTERY VOLTAGE (11 - 14 V)
2, 29
Wire colorBR/Y, L/Y
ItemIACV-AAC valve
Condition[Engine is running]
- Lift up drive wheels and shift gear "ON"
- Rev engine up from 1,200 to 3,000 rpm
Data (DC Voltage)Approximately 0 V
3, 4, 31, 32
Wire colorG/Y, BR, L, L/R
ItemInjector No. 1 / Injector No. 4 / Injector No. 3 / Injector No. 2
Condition[Engine is running]
- Warm-up condition
- Idle speed
Data (DC Voltage)BATTERY VOLTAGE (11 - 14 V) — narrow pulses, 20 ms/div (see SEF011W)
3, 4, 31, 32
Wire colorG/Y, BR, L, L/R
ItemInjector No. 1 / Injector No. 4 / Injector No. 3 / Injector No. 2
Condition[Engine is running]
- Warm-up condition
- Engine speed is 2,000 rpm
Data (DC Voltage)BATTERY VOLTAGE (11 - 14 V) — wider pulses, 20 ms/div (see SEF012W)
6
Wire colorB
ItemECM ground
Condition[Engine is running]
- Idle speed
Data (DC Voltage)Approximately 0 V
8
Wire colorG
ItemMalfunction indicator
Condition[Ignition switch "ON"]
Data (DC Voltage)0 - 1 V
8
Wire colorG
ItemMalfunction indicator
Condition[Engine is running]
- Idle speed
Data (DC Voltage)BATTERY VOLTAGE (11 - 14 V)
10, 11
Wire colorY/G, L
ItemHeated oxygen sensor's ground
Condition[Engine is running]
- Idle speed
Data (DC Voltage)Approximately 0 V
12
Wire colorB/R
ItemHeated oxygen sensor 1 (front)
Condition[Engine is running]
- Warm-up condition
- Engine speed is 2,000 rpm
Data (DC Voltage)0 - Approximately 1 V — oscillates, 1 s/div (see SEF008W)
14
Wire colorB/W
ItemMass air flow sensor ground
Condition[Engine is running]
- Warm-up condition
- Idle speed
Data (DC Voltage)Approximately 0 V