PGM-FI Control System - Troubleshooting Flowchart - TDC/CRANK/CYL Sensor [SOHC] (cont'd)
6-37flowchartTDC/CRANK/CYL sensor troubleshooting for SOHC engine, continued from 6-36. Wire colors ORN and WHT.
1
(From page 6-36)
2
Check for continuity to body ground on C terminal and D terminal individually.
3
Does continuity exist?
YES
Replace the distributor assembly (section 16).
NO
4
Reconnect the connector.
5
Connect the PGM-FI test harness only to the main wire harness, but not to the ECU (page 6-19).
6
Measure resistance between B10 terminal and B12 terminal.
7
Is there 350-550 Ω?
NO
Repair open in ORN and/or WHT wires.
YES
Substitute a known-good ECU and recheck. If symptom/indication goes away, replace the original ECU.
(cont'd)