6E–174
4JA1/4JH1 ENGINE DRIVEABILITY AND EMISSIONS
Step
Action
6
Using the DVM and check the MAB (fuel cutoff solenoid valve) circuit. Breaker box is available: 1. Ignition “Off”, engine “Off”. 2. Install the breaker box as type B. connected) Ref. Page 6E-104
Value(s)
Yes
No
Less than 1V
Go to Step 8
Go to Step 7
—
Verify repair
Go to Step 8
—
Verify repair
—
(ECM
3. Check the circuit for short to voltage circuit. Was the DVM indicated specified value? Breaker Box 105
V
Breaker box is not available: 1. Check the circuit for short to voltage circuit. Was the DVM indicated specified value? C-57
105
V 7
Repair the short to voltage circuit between the ECM and PSG (pump control unit). Was the problem solved? C-57
E-6
5 105
8
Replace the injection pump assembly. Is the action complete?