Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

J - Fuel Pump Circuit

Enter this Pinpoint Test only when service code 87, 95 or 96 is received during Quick Test or you have been directed here from Pinpoint Test AA or Quick Test step 9.0 (Diagnosis By Symptom).

This Pinpoint Test is only intended to diagnose the following:

1. Fuel pump relay.
2. Inertia switch.
3. Harness circuits: BATT (+), VPWR, F.P., GND, and Power to pump.
4. ECA computer processor.


PINPOINT TEST J SCHEMATIC

Pinpoint Test J Schematic:






TEST STEPS J1 - J2

Test Steps J1 - J2:






TEST STEPS J5 - J6

Test Steps J5 - J6:






TEST STEPS J11, J20, J21

Test Steps J11, J20, J21:






TEST STEPS J22 - J23

Test Steps J22 - J23:






TEST STEPS J24 - J25

Test Steps J24 - J25:






TEST STEPS J26 AND J30

Test Steps J26 And J30:






TEST STEP J31

Test Step J31:






TEST STEP J90

Test Step J90:






TEST STEPS J91 - J92

Test Steps J91 - J92:






TEST STEPS J93 - J94

Test Steps J93 - J94:






TEST STEP J95

Test Step J95: