ENGINE AND EMISSION CONTROL SYSTEM
6E1-41
B-9 ELECTRIC LOAD SIGNAL CIRCUITS CHECK
1. Ignition switch
2. Blower fan motor
3. Blower fan switch
4. Heater blower register
5. Clearance light
6. From battery
7. Clearance light switch
STEP
ACTION
YES
NO
1
Check voltage at E34-18 terminal under each condition given
below.
Small light turned OFF
: 0 V
Small light turned ON
: 10 – 14 V
Is check result satisfactory?
Go to Step 2.
“Br/R” wire open or
short
Poor “E34-18” ter-
minal connection
2
Check voltage at E34-9 terminal under each condition given
below.
Ignition switch ON and
heater blower fan turned OFF
: 10 – 14 V
Ignition switch ON and
heater blower fan turned ON
: 2 V or less
Is check result satisfactory?
Electric load
signal circuit
are in good
condition.
“P/B” wire open or
short
Poor “E34-9” termi-
nal connection
Fig. for STEP 1 and 2
1. ECM coupler connected
2. Body ground