8206code.fm Page 122 Tuesday, July 7, 1998 11:57 AM
DIAGNOSTIC CODE 5-2 Test 16 Checking for a bad pedal connection 1. Reconnect the TPS. 2. Turn the ignition key to the ON position.
If code 5-2 is still active, proceed to Test 32. If code 5-2 is not present, harness connector pin C is loose (either in the sensor or connector). Repair the loose connection. Retest to be sure the problem has been corrected. If there is now an active fault, code 5-1, there is poor contact in the sensor connector mating pins. Repair the loose connections. Retest to be sure the problem has been corrected.
Test 17
1. Disconnect the J1B connector from the V-MAC II module. 2. Connect a jumper from harness connector pin C to a good ground. 3. Check for continuity from J1B connector pin L3 (the TPS ground [−] line) to a good ground.
If there is continuity, proceed to Test 34. If there is no continuity, there is an open in the ground line in the harness. Locate and repair the open. Retest to be sure the problem has been corrected.
Test 18 Checking for pin-to-pin continuity with the ground line
Checking for an open in the ground line in the harness
Figure 202 — Continuity between Pin L3 and All Other Pins
1. Disconnect the serial link jumper. 2. Disconnect the J1A and J2 connectors from the V-MAC II module. Figure 200 — Jumper from Pin C to Ground
3. Check for continuity between J1B connector pin L3 (the TPS ground [−] line) and each of the other pins (one at a time) on the J1A, J1B and J2 connectors.
If there is continuity with another pin, there is a pin-to-pin short between the TPS ground line and the pin which showed continuity. Locate and repair the short and replace the V-MAC II module. Retest to be sure the problem has been corrected. Figure 201 — Continuity from Pin L3 to Ground
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If there is no continuity, replace the V-MAC II module. Retest to be sure the problem has been corrected.
